Final Exam

Question 1

actin

Answer 1

thin filament (I band) in the sliding filament model

Question 2

aerobic system

Answer 2

energy system, long term, running, need air for this system

Question 3

av O2 (oxygen) difference

Answer 3

arterial venous oygen difference, what the muscles use to perform work

Question 4

biceps (brachii)

Answer 4

flexion of the forearm, antagonist of extension of the forearm

Question 5

cardiac output

Answer 5

heart rate multiplied by blood pressue

Question 6

concentric contraction

Answer 6

muscles shorten with force (bicep curl)

Question 7

deltoids

Answer 7

abduct the shoulder (horizontal and frontal)

Question 8

diarthodial joint

Answer 8

joint with TWO actions (the knee)

Question 9

diastole

Answer 9

a chamber of the heart filling with blood, relaxation

Question 10

eccentric contraction

Answer 10

muscles elongate with force

Question 11

extension

Answer 11

opposite of flexion; return to anatomical position

Question 12

flexion

Answer 12

decrease in range of motion (ROM); bending movement around a joint or limb that decreases the angle between bones

Question 13

gluteus maximus

Answer 13

extension of hip/thigh

Question 14

glycolytic

Answer 14

energy system; moderate power/short (moderate) duration, next in line after the ATP-PC system runs its course

Question 15

hamstrings

Answer 15

vastus medialus, vastus lateralus, and semitendinousus; knee flexion and hip extension

Question 16

isometric contraction

Answer 16

no movement in muscle when force is exerted

Question 17

lactate threshold

Answer 17

lactic acid (the by product of muscle exertion), tolerance for lactic acid

Question 18

latissimus dorsi

Answer 18

back muscles (on the side), worked on by pulloever exercises and this muscle is the secondary muscle for most exercises

Question 19

left atrium

Answer 19

chamber of the heart, the top of the left side, blood leaves here, goes through mitral valve and then into left ventricle

Question 20

left ventricle

Answer 20

chamber of the heart, bottom of left side, blood leaves here, goes through the aeortic valve and then into the aeorta

Question 21

mitral valve

Answer 21

also called the bicuspid valve; prevents backflow into left atria

Question 22

motor unit

Answer 22

nerve fibers and muscle fibers it innervates; muscle

Question 23

myosin

Answer 23

the thick filament in the sliding filament model

Question 24

oxidative

Answer 24

with oxygen

Question 25

pectoralis major

Answer 25

flexion, adduction and medial rotation of the humerus

Question 26

phosphocreatine system

Answer 26

anaerobic; surge of energy (lift up a car - approx 10 second)

Question 27

quadriceps

Answer 27

on the front of leg; extension of leg

Question 28

rectus abdominus

Answer 28

“six pack”; trunk flexion

Question 29

right atrium

Answer 29

top of right side

Question 30

right ventricle

Answer 30

bottom left

Question 31

SA Node

Answer 31

“pacemaker”; send electrical message (P wave)

Question 32

QRS wave

Answer 32

AV node

Question 33

striated band

Answer 33

actin and myosin, actin is light

Question 34

stroke volume

Answer 34

the amount of blood pumped out with each beat (EDV-ESV)

Question 35

synarthrodial joint

Answer 35

joint that does about every action

Question 36

systole

Answer 36

heart contraction

Question 37

T Wave

Answer 37

Diastole

Question 38

triceps

Answer 38

back of the arm; extension of forearm

Question 39

tricuspid valve

Answer 39

on the right side (between right atrium and ventricle)

Question 40

EKC

Answer 40

electocardiogram

Question 41

heart attack

Answer 41

low stroke volume

Question 42

Risk Factors of Coronary Disease

Answer 42

1. Age
2. Family History
3. Cigarette Smoker
4. Sedentary Lifestyle
5. Obesity
6. Hypertension
7. Dyslipidemia
8. Prediabetes

Question 43

What is the negative risk factor

Answer 43

HDL greater or equal to 60 mgdL