Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
92 Cards in this Set
- Front
- Back
What is anatomy?
|
Science of the body and the relationships of body parts to one another.
|
|
Why is it important for personal trainers to understand human anatomy?
|
Identify appropriate activities/ exercises to help clients achieve their personal goals.
|
|
Name the five major human body systems pertinent to physical activity.
|
1. Cardiovascular 2. Respiratory 3. Nervous 4.skeletal 5. muscular
|
|
From which languages were anatomical terms derived?
|
Latin/ Greek
|
|
What is the cardiovascular system composed of?
|
Blood, Blood vessels, heart
|
|
What are the main purposes of the cardiovascular system?
|
eliminate CO2
|
|
What is the only fluid tissue in the body and what is it made of?
|
Blood- 1. formed elements: living blood cells; 2. plasma
|
|
What important function happens at the capillary level?
|
critical exchange of nutrients and metabolic waste.
|
|
Describe the size, location, and composition of the heart
|
hollow, muscular organ at the center of the cardiovascular system. size of closed fist. left of center behind the sternum between the lungs.
|
|
How much blood do average-sized healthy women and men have in their bodies?
|
men- 5-6 L women 4-5 L
|
|
Name two types of blood vessels and describe what they do.
|
Arteries- carry blood away from heart
veins- carry blood towards heart |
|
Where are the largest arteries located?
|
nearest to the heart
|
|
What are capillaries?
|
Branch off arteries- microscopic blood vessels that branch out to form an extensive network in distal tissues.
|
|
How many chambers are in the heart?
|
4
|
|
Name the two pumps in the heart
|
1. primer: atria receives blood 2. power- ventricle drains blood
|
|
Blood is distributed to all but one body part once it leaves the aorta. What body part is that?
|
Lungs
|
|
What is the respiratory system composed of?
|
Lungs, series of passage ways leading to/from lungs (mouth, throat, bronchi, trachea)
|
|
What is respiration?
|
overall exchange of gases (o2, co2, nitrogen) between atmosphere, blood, and cells
|
|
What are three general phases of respiration?
|
1. internal 2. external 3. cellular
|
|
What is an easy landmark for locating the larynx
|
Adams apple; thyroid cartilidge
|
|
How long is the trachea
|
4 1/2 inches (12 cm)
|
|
where does the exchange of respiratory gases take place?
|
Alvioli
|
|
What is the final component of the respiratory system?
|
lungs
|
|
How many lobes do the right and left lung have?
|
3 in right; 2 in left
|
|
What is the main purpose of the nervous system?
|
body's control center and network for internal communications
|
|
name the two parts of the nervous system.
|
central and peripheral
|
|
What is the central nervous system (CNS) composed of?
|
brain and spinal cord
|
|
What is the peripheral nervous system (PNS) composed of?
|
nerves
|
|
Name the four main plexuses in the human body.
|
cervical, brachial, lumbar, sacral
|
|
What do nerve cells do in the nervous system?
|
carry messages; nerve impulses- that originate in CNS or in receptors
|
|
What are different types of receptors?
|
sensitive to pain, temp, pressure and changes in body position
|
|
What do sensory nerve cells do?
|
carry impulses from peripheral receptors to the CNS
|
|
What do motor nerve cells do?
|
carry impulses away from CNS to respond to changes in body's internal or external environment.
|
|
Why is it important for the CNS and PNS to communicate?
|
They provide feedback to each other. Respond together as necessary. So we can complete simple and complex activities.
|
|
How many bones does the human body consist of?
|
206
|
|
Name the two sections of the skeletal system and list how many bones are in each system.
|
1. axial-80 2. Appendicular-126
|
|
Name and explain the 5 basic functions of bones
|
1. protect organs
2. support for soft tissue 3. framework of levers where muscles are attached 4. production of certain blood cells 5. storage for calcium, phosphorous, potassium, sodium and other minerals. |
|
How are bones classified?
|
shape; long short/ flat or irregular
|
|
What is bone composed of?
|
organic component- collagen and inorganic component- calcium/ potassium
|
|
What happens to bones whe a person has a sedentary lifestyle?
|
bones become less dense- mineral salts withdrawn
|
|
Define the following phrase: "form follows function"
|
strong or weak form is in response to recent function of bone (activity)
|
|
What is amenorrhea?
|
2 or less periods/ year (menopause)
|
|
What is the purpose of the axial skeleton?
|
80 bones form skull, vertebral column, and chest. Main structure and support for body; protects CNS
|
|
How many vertebrae are there and how are they divided into groups?
|
33 vertebrae; 5 groups depending on region of body located
|
|
What is the appendicular skeleton composed of?
|
bones in upper and lower limbs; bones that attach the legs and arms to axial skeleton
|
|
What does the pelvic girdle consist of?
|
2 lg hip bones; os coxae
|
|
Which bones make up the pectoral girdle?
|
hip, ilium, ishium and pubis
|
|
What is the trade off for the configuration of the pectoral girdle?
|
wide range of movements at shoulder; most mobile joint in the body
|
|
What is an articulation?
|
joint
|
|
What is a ligament?
|
dense, fibrous strands of connective tissue that link together bony segments.
|
|
How are joints classified in the body?
|
1. Structure of joint
2. type of movement allowed by joint |
|
What are two main characteristics that differentiate the types of joints?
|
1. types of connective tissue
2. presence/ absence of joint cavity |
|
What are three major structural categories of joints?
|
fibrous, cartilaginous, synovial
|
|
What is the most predominant type of joint in the body?
|
synovial- diarthroses
|
|
What causes the movement limitations of the synovial joints?
|
shapes of the bones of the joint and soft tissues surrounding the joint
|
|
What are four distinguishing features that set synovial joints apart from other joints?
|
1. Ends of bones covered with a thin layer of articular cartilage, which doesn't attach bones
2. surrounded by articular or joint capsule made of dense, fibrous connective tissue. 3. Inner surface of joint is lined with synovial membrane 4. secretion of fluid--> acts as lubricant for joint |
|
What is the primary function of synovial membrane?
|
secretion of synovial fluid?
|
|
What is the importance of the synovial fluid?
|
acts as a lubricant for joint and provides nutrition to articular cartilage
|
|
What are menisci and what purpose do they serve?
|
Help to absorb shock, increase joint stability, aid in joint nutrition, increase joint contact area; fibrous cartilidge
|
|
What is a torn meniscus?
|
common knee injury; tearing of one of the articular disks in a joint
|
|
What is the functional classification of joints based on?
|
degree and type of movement they allow.
|
|
How are fibrous joints classified?
|
synarthroses; cartilaginous; diarthrodial
|
|
Describe cartilaginous joints
|
Cartilidge on both sides of joint; slightly moveable
|
|
Which is the largest functional category of joints?
|
Diarthrodial- freely moving joints
|
|
What are primary factors limiting the movement of a joint?
|
1. ligament/ capsular tension. 2. poor muscle/ tendon flexibility. 3. apposition- touching of soft tissue
|
|
What is axis of rotation?
|
imaginary line perpendicular to the plane of movement about which a joint rotates. many joints have several axes
|
|
What is a uniplanar joint?
|
joints that can only move in one plane. "hinge joint" (ankle and elbows)
|
|
What is a biplanar joint?
|
2 axes of rotation, permitting motion in 2 planes (knee joint)
|
|
What are condyloid joints?
|
Joints of the hand and fingers
|
|
What are multi planar joints?
|
3 axes of motion- permit movement in 3 planes. (hip and shoulder)
|
|
Name a saddle joint
|
Thumb
|
|
What are two basic types of movements in the various synovial joints?
|
-angular and circular
|
|
Which four movements are angular?
|
1. flexion 2. tension 3. abduction 4. adduction
|
|
Flexion and extension occur in which plane?
|
sagittal
|
|
Adduction and abduction occur in which plane?
|
frontal
|
|
define and give an example of adduction and abduction
|
adduction: return motion from abduction. movement toward midline
abduction: motion away from midline of body arm or leg moved away from midline of the body. |
|
Name the four circular movements possible at the synovial joints
|
1. rotation
2. supination 3. pronation 4. circumduction |
|
Define supination and pronation
|
supination: external rotation of forearm. Palm to face
pronation: internal rotation of forearm. radius to cross diagonally over ulna and palms face posteriorally. |
|
Which anatomical system is most directly affected by exercise?
|
muscular
|
|
What are three types of muscle tissue?
|
skeletal: attach to bone by tendons- named by location.
Cardiac: forms walls of heart; involuntary by nature visceral: walls of internal organs- involuntary |
|
What is aponeurosis?
|
broad, flat tendon
|
|
How many muscles are in the human body?
|
+600
|
|
Muscles are named according to 6 categories. What are they ?
|
1. location 2. shape 3. action 4. # of divisions 5. bony attachments 6. size relationships
|
|
What is an agonist and antagonist and how do they work together?
|
Agonist: when one muscle contracts.
Antagonist: opposite muscle being stretched. |
|
What are synergists?
|
combining muscles at a joint that help perform a function
|
|
What are the major links of the lower body?
|
1. ankle joint 2. knee joint 3. hip joint
|
|
What is the largest tendon of the body and where is it located?
|
Achilles- heel bone
|
|
What is the major function of the quadriceps?
|
extend the legs
|
|
What is the longest muscle of the body?
|
Sartorius
|
|
Name the muscles that act at the hip
|
psoas major, psoas minor, lliacus, rectus femoris, glutious maxiumus, biceps femoris, semitendinousus, semimembranousus
|
|
Name the muscles that act at the elbow joint.
|
radius and ulna
|
|
Name the muscles that act at the scapulothoracic articulation
|
trapezius, rhomboid major, rhomboid minor, legator scapulae
|