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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