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116 Cards in this Set

  • Front
  • Back
How many organ systems are in the human body?
11
How many basic body tissues? What are they? What four roles do they have?
4; epithelial, connective, nervous, and muscle tissue; support, covering, movement, and control
How many types of specialized cells?
dozens
Cells that are similar are group together to form __________.
tissues.
Similar tissues are grouped together to form ______________.
organs.
Two or more organs in conjunction with associated structures are joined together to form a ________.
system.
Systems are interdependent to support the entire ________ and ___________ of the body
structure and function. This is what anatomy and physiology is the study of.
What is one of the key chemical reactions of the body?
One of the key chemical reactions is the making and usage of ATP, which provides energy to all cells
How many cell types are in the body and what do they vary in?
There are generally 200 different cell types within the body, each of which varies in size, shape, and function
What is the basis of all living organisms? What are they composed of?
The cell is the basis of all living organisms and is composed of carbon, hydrogen, nitrogen, and oxygen, among other elements
Card on cell structure
Each cell has a nucleus, where the DNA and RNA are found, and is covered by a plasma membrane and various parts that perform specific functions to work interdependently with other components within the body.
Cells also have mechanisms to signal other cells or chemicals for a particular purpose, such as ______________.
carrying them to a specific location.
How do cells produce energy?
hint ATP
What is the purpose of cilia?
1
Define diffusion
1
Define osmosis
2
Define carriers
1
Define channels
1
. Cell specializations can be 1._____________ however, as the more they are 2.____________, the more a loss often results in a disability or potential death to the entire human body
1. hazardous
2. specialized
What is the role of epithelial tissue?
To cover, line, and function as glandular tissue within the body.

It protects, absorbs, excretes, filters, secretes, and senses incoming signals
What are the subcategories of epithelial tissue?
Glandular epithelia • Pseudostratified columnar epithelium • Simple cuboidal epithelium • Simple squamous epithelium • Simple columnar epithelium
What are the key characteristics of Pseudostratified columnar epithelium tissues?
are located where secretion and active absorption of substances are important roles—such as the upper respiratory
What are the key characteristics of Simple cuboidal epithelium tissues?
are also located where secretion and absorption are important—in the thyroid, where hormones are secreted into the blood stream, for example
What are the key characteristics of simple squamous epithelium tissues?
are located where leaky tissue would be useful—in the linings of blood vessels and alveoli of the lungs
What are they key characteristics of simple columnar epithelium tissues?
are located where secretion and active absorption are key roles, and have microvilli and goblet cells. These are located in the digestive tract where digestive juices are secreted and key nutrients are absorbed
What are they key characteristics of Glandular epithelia?
are specialized cells that form tissues that secrete a product. We will discuss this type of tissue in greater detail later, when we discuss the pancreas and thyroid, where those functions play key roles.
What are the largest components of epithelial tissue? What are the characteristics of this component?
Connective tissue.

It helps by supporting, protecting, insulating, and transporting blood


Connective tissue can vary in its characteristics and exhibits many sharp contrasts

It may be very vascular or avascular (cartilage); it can be fibrous or fluid, gel-like; it can be loose (such as adipose tissue), or very dense (such as ligaments and tendons).
Bone is another form of ____________________. How is it different from cartilage?
Connective tissue. Unlike cartilage, it is plentiful in blood supply.
What is the most irregular connective tissue? Why is it irregular?
Blood—irregular because it does not support or connect things, but, is labeled as connective tissue because it forms from the same embryonic layer as all other connective tissue
What is nervous tissue?
The layer of tissue that controls and is comprised of cells and other structures that receive and transmit electrical impulses that support and regulate the body.
What are/explain axons and dendrites?
1
What is muscle tissue composed of? What are the three categories and what do they do?
Muscle tissue is composed of cells that allow contraction and cause movement.

The three types are Skeletal muscle that provides the ability to move the skeleton, cardiac muscle that forms the heart wall and pumps blood and smooth muscle that forms the walls of hollow organs and propels substances through them.
Describe the composition of the greatest wonder of the epithelium, the skin.
1. Skin is a multi-layered tissue composed of the epidermis and the dermis. 2. Each of these is subdivided into components that have specific purposes of protecting, allowing flexibility, cushioning, and supporting other structures. 3. Skin contains many appendages such as hair, nails, and glands. 4. Sweat glands regulate body temperature.
What do the Sebaceous glands do?
Sebaceous glands lubricate the skin and act as a bactericidal agent.
What does hair do?
Hair acts not only as a protective coating, keeping us warm, but also as a sensory system. Hair senses insects before they bite.
What do nails do?
Nails are hardened layers of keratin that not only protect the fingers and toes, but are useful tools to scratch an itch.
The body constantly ______ _______ bone. Bones that sustain greater ________replace much more quickly. Each week, the body recycles ____ to ____ of its bone mass
1. creates new
2. stress
3. 5% to 7%
There are a total of _____ bones divided into ____ major regions. These regions are (plus one):
1. 80
2. 3
3. cranium, thoracic cage, vertebral column, appendicular skeleton
The _________ has _______major bony sections that make up what is referred to as the hard hat. The bones in the skull are named for their ________ and ______________.
1. cranium
2. 8
3. location
4. adjoining suture lines
The __________is comprised of 26 __________ shaped bones that provide __________ to the body’s frame. The vertebrae are structured to protect the __________ and provide points of __________for the ribs, back, and neck.
1. vertebral column
2. irregularly
3. flexibility
4. spinal cord
5. attachment
The _________ provides protection for the major organs: the________, _______, and __________. This cage provides support for _______ and ____________ and provides attachment points for the _____, ______, ______, and __________.
1. thoracic cage
2. lungs
3. heart
4. great blood vessels
5. shoulders
6. upper arms
7. neck
8. back
9. chest
10. shoulders
The _________________ includes all of the _________—arms, legs, and their girdles.

The shoulder, or ___________, is the attachment point for the upper limbs to the _________.

The pelvic girdle secures the _________.

The ____________ provide the body with the ability to carry heavy objects and give hugs while the ___________ carry the body wherever it goes.
1, appendicular skeleton
2. appendages
3. pectoral girdle
4. trunk
5. lower limbs
6. upper limbs
7. lower limbs
The foot, an appendage of the ______ skeleton, has the engineering capabilities to act as a ________, to carry the weight and pressure of the entire frame and allow enough flexibility to run and walk while ____________.
1. appendicular
2. shock absorber
3. maintaining balance
Joints are primarily categorized by ________ and overall _________, and are further categorized as fibrous, cartilaginous, and synovial. The joints are the ______ points in the body structure.
1. structure
2. function
3. fibrous, cartilaginous, synovial
4. weakest
_____________ are those that join bone by fibrous tissue; no _________ is present. Movement in fibrous joints is dependent upon the_______ of the fibers connecting the bones.
1. Fibrous joints
2. cavity
3. length
____________ joints are those that join bone by cartilage. They lack a __________ just like the fibrous joints.
1. Cartilaginous
2. cavity
___________ join bone with a fluid-containing joint cavity, and are the most common type found in the body.
_________ contain two major components: _________, which are fibrous sacs containing synovial fluid, and ____________which are cylindrical structures that surround muscle tendons.
1. Synovial joints
2. Synovial joints
3. Bursae
4. Tendon sheaths
What are bursae? What are tendon sheaths?
Bursae are fibrous sacs containing synovial fluid,

Tendon sheaths are cylindrical structures that surround muscle tendons.
Bursae and tendon sheaths provide _______________ over each other.
Smooth movement
What are the 7 different directions that synovial joints allow for movement?
• Flexion—bending movement to decrease the angle
• Extension—the reverse of flexion to increase the angle
• Abduction—movement of a limb away from the midline
• Adduction—movement of a limb towards the midline
• Rotation—turning of a bone around on its own long axis
• Supination—turning backwards
• Pronation—turning forward
Name three examples of synovial joints.
ball and socket joint (such as the hip); the hinge joint (such as the knee); and the plane, or intercarpal joints.
What types of synovial joints provide for the greatest stability?
Joints with large surfaces and deep sockets
A strong _______________ structure provides reinforcement to joint connections and muscle tone provides overall stabilization. Define _________________.
Ligament: a sheet or band of tough fibrous tissue connecting bones or cartilages or supporting muscles or organs
____________ muscles have a variety of shapes and work to provide the body with _________ by having both _________________ points.
1. Skeletal
2. movement
3. origin and insertion
The fleshy contractile point of the skeletal muscle is known as the _________; it stretches or contracts when muscle movement is ______.
1. belly
2. initiated
Muscles are either directly or indirectly _________to bones through __________.
1. attached
2. tendons
The skeletal muscle is made up of large, ____ cells called _____________.


The structure of the muscle fiber includes what five things?

Together, these five things allow for appropriate contraction and movement of the muscle.
1. long
2. muscle fibers
3. endomysysium, sarcolemma, sarcoplasm, myofibrils and myosin
What is the endomysysium ?
The endomysysium is the protective, covering layer that houses the exterior of the muscle fiber.
What is sarcolemma?
Working inward, the sarcolemma is the plasma membrane of the muscle cell.
What is sarcoplasm?
The sarcoplasm is found inside the sarcolemma and is the muscle cell’s cytoplasm.
What are myofibrils?
Myofibrils are the tiny threads that run the length of the fiber and are the largest component of the entire muscle fiber.
What are myosin and actin?
Myosin and actin are tiny fibers within the muscle fiber. Skeletal muscle is striated in its appearance because of these fibers.
_________ fibers provide muscle with strength and durability.
1. Multi-layer
Muscle groups are essential for what four important functions in the human body?
movement, stability, protection of visceral organs, and heat generation
How do Calcium, acetylcholine, potassium, and sodium work together to provide for the movement, contraction, and relaxation of the muscle?
CONTINUE

"with calcium the final trigger point to cause muscle movement. "
Muscle fibers are affected by _______ endings, which are controlled by __________and ___________, which assist in producing an electrical current (or ______________) and ______ the muscle.
1. nerve
2. neurotransmitters
3. electrolytes
4. action potential
5. contract
What provides the source for oxidative metabolism in muscles? What does this do?
mitochondria.

Powers the cells of the muscle through oxygen derived from glucose and triglycerides.
What does oxidative metabolism do?
Generates heat for the body
How many skeletal muscles are there in the body?
Over 600
Card on muscle groups based on location
1
What is the nervous system?
the master controller and communicator system within the body.
As a part of the nervous system, what is the brain responsible for?
sending, receiving, and processing nerve impulses.
_________________ in the human body relies on the nervous system to function.
Every muscle and organ
The nervous system is so complex that it can sum up_____ and _____ information to respond to any given situation.
current and previous
What are the three subgroups of the nervous system?
the central nervous system (CNS), the peripheral nervous system (PNS), and the autonomic nervous system (ANS).
Describe the CNS
1.comprised of the brain and spinal cord.
2. responsible for integrating new and old information and dictating a motor response.
3. the primary command center for the body
What are neurons? What are their subclassifications?
Cells within the nervous system that are highly specialized conductor cells that receive and transmit electrochemical nerve impulses. Their subclassifications are axons and dendrites.
Describe axons.
Axons carry nerve impulses away from the cells bodies;CONTINUE
Describe dendrites.
dendrites receive nerve impulses and conduct them toward the cell body CONTINUE
What is neurotransmission? What three stimuli provoke it?
The conduction of electrochemical impulses that is the primary responsibility of neurons.


mechanical, thermal, or chemical stimuli.
Along with axons and dendrites, the nervous system is comprised of ______. What do they do?
glial cells.

1. supply nutrients
2. assist the neurons in maintaining electrical potential;
3. produce cerebrospinal fluid, 4. ingest microorganisms and waste products
5.protect
The brain has _____ major divisions. Name them.
6; the cerebrum, cerebellum, brain stem, diencephalons, limbic system, and reticular activating system.
Function of cerebrum
1
Function of cerebellum
1
Function of brain stem
1
Function of diencephalons,
1
Function of limbic system,
1
Function of reticular activating system
1
The brain is responsible for over ten key functions. Name 7.
The brain is responsible for sensory and motor activity, intelligence, muscle tone, movement and control of balance, autonomic reactions through pathways between higher and lower neural centers, body temperature, water balance, appetite and hunger, emotional and sexual arousal, and maintaining consciousness
What does the PNS do?
The PNS consists of the cranial and spinal nerves that carry nerve impulses to and from the brain and spinal cord, respectively.
Define the afferent and efferent impulses of the PNS
1
Within the nervous systems, the body takes _______ and turns it into ____________.
sensation; perception
Various types of _________respond to changes and require _________, including (but not limited to): _________receptors (touch and pressure), __________receptors (temperature), and _______________ (light).


Each of these __________ takes particular stimuli and interprets them for the body
1. receptors
2. interpretation
3. mechanical
4. thermal
5. photoreceptors
6. receptors
What are reflexes? What are they a part of?

Reflexes are a great way to do what?
1. innate responses to stimuli that are a protective mechanism (e.g. when the body is hurt, for example, it tells us to withdraw the injured part to avoid further injury).
2. are part of the PNS.
3. assess the condition of the nervous system
The _______ is dependent upon the _____ for information from internal and ______ stimuli which can be interpreted and used in current or ______ responses
1. cns
2. pns
3. external
4. future
What are the main responsibilities of the autonomic nervous system?
The autonomic nervous system (ANS) innervates and controls smooth and cardiac muscle and glands, and is essential to the stability of our internal environment. It is responsible for providing internal homeostasis.
The ANS controls the internal environment without ________ or ________; it is completely involuntary.
prompting or stimuli
What two systems if the ANS composed of? Define them. How do they work together?
The ANS is divided into sympathetic and parasympathetic systems. The parasympathetic system conserves body energy and maintains activities on a basal level. The sympathetic system prepares the body for activity through the fight or flight system.




These two subsections of the ANS often work as opposites—while one is stimulating a certain action, the other is inhibiting—which allows the body to maintain a homeostatic balance.
Name some sympathetic responses.
Some of the sympathetic responses may include dilated pupils, increased heart rate, increased blood glucose levels, and sweating
What types of nerves are the nerves of the sympathetic system? What do they do? What responses may they cause?
The sympathetic nerves are considered preganglionic nerves and spread the impulse to the postganglionic neurons.


The responses elicited could include vasoconstriction, increased heart rate, increased sweat gland production, papillary dilation, and increased respiratory rate.
What types of nerves are the nerves of the parasympathetic system? What do they do? What responses may they cause?
The parasympathetic nerves travel through long preganglionic fibers to the short postganglionic fibers, which enter a particular organ or gland.



The movement of the parasympathetic nerves allows for a more specific response from a particular organ or gland, including increased bladder tone, decreased heart rate, or increased GI tone
What are preganglionic and postganglionic fibers?
1
Do they parasympathetic and sympathetic systems interact?
in a multitude of ways, yes.
What are the special sense?
1
What does the tongue do?
The tongue interprets data received when we eat, providing our brain information regarding what we have placed in our mouth….is it sweet, salty, bitter, sour, or umami
What is umami?
(a response to te amino acids glutamate and aspartate) CONTINUE CARD
How does the brain respond to the tongue? What is interesting about the bitter taste receptor?
Our brain lets us know as it interprets the data from the receptor areas of our tongue. Interestingly, the bitter taste receptor is a protective mechanism as many of the poisons or spoiled foods have a bitter taste
What are our primary sensory organs? What contains most of the body's sensory receptors?
The eyes and ears; . The eye contains about 70% of the body’s sensory receptors;
What happens when light is brought into the eye? What is the gate mechanism to control this intake? What does the lens do? What does the retina do?
Bringing in light excites the photoreceptors, eliciting a chain of responses which will eventually interpret the data into images.



The gate mechanism to control the light is the iris.




The lens focuses the light to the retina where light sensitive cells send the image to the brain
How many photoreceptors are in the neural retinas? What is amazing about these receptors?
1. a quarter-billion
2. These receptors provide us with the ability to process information taken in through the eye faster than any computer.
What are the various functions of the structures of the ear? Describe by each structure.
1. to take in and channel sound (pinna and external auditory canal)
2. to process it in an intermediary point (tympanic cavity)
3. to receive the vibration and transmit to the brain (three small bones and labyrinth)
What is the ear ALSO crucial for?
Providing equilibrium.
What is the difference between static and dynamic equilibrium?
1
How does dynamic equilbrium work?
Dynamic equilibrium consists of the crista ampullaris. This crista is stimulated by head movement (acceleration, deceleration, or rotation). Each crista (there is one in each semicircular duct) consists of a tuft of hair cells embedded in a cupula. Rotation causes the endolymph to flow in opposite directions, bending the cupula which excites or inhibits the hair cells. Our brain processes this information giving us the stability and balance to maintain our upright posture or provides us with the ability to reflexively correct our balance
How is static equilibrium managed? Describe. How do they function to provide balance?
Static equilibrium is controlled in the ear by sensory receptors known as maculae.


This macula consists of hair cells embedded in an overlying otolithic membrane. As we elicit linear movement, it causes the membrane to move, pulling on hair cells and stimulating the vestibular nerve fibers responsible for our balance.
Our brain has the ability to process stimuli from ______ sources simultaneously. However, our ability to interpret data appropriately is dependent on an ____________.
1. multiple
2. intact CNS, PNS, and ANS.