s

Question 1

Name muscular functions

Answer 1

body movement
respiration
heat production
constrictions of organs and vessels
communication
posture

Question 2

bone is a connection tissue True or False

Answer 2

True

Question 3

skeletal muscle naming

Answer 3

location
size
shape
orientation

Question 4

what is sarco and myo

Answer 4

muscle

Question 5

What are muscle cells called

Answer 5

Fibers

Question 6

what are the contractile proteins in myofibrils

Answer 6

actin and myosin

Question 7

what are the regulatory proteins that turn contraction on and off?

Answer 7

Troponin and tropomyosin

Question 8

parts of a muscle in order

Answer 8

whole muscle
Fascicles
muscle fiber
myofibrils
sarcomere
myofilaments

Question 8

3 types of muscle

Answer 8

Skeletal
Cardiac
Smooth

Question 9

wrapped in

Answer 9

whole muscle -> epimysium
fascicles-> perimysium
Individually wrapped->Endomysium

Question 10

What do T tubules do

Answer 10

Invaginations (tunnels) in the sarcolemma that quickly spread impulse to all areas of muscle fiber

Question 11

what does sarcoplasmic reticulum do

Answer 11

only job is to hold calcium

Question 12

what build myofibrils

Answer 12

actin and myosin

Question 13

Where is a binding site for calcium

Answer 13

troponin is a binding site for calcium

Question 14

where is the heart located

Answer 14

the heart is located in the mediastinum

Question 15

what is pericardium

Answer 15

a bag that holds the heart and prevents overstretching

Question 16

what is inflamation of the pericardium called?

Answer 16

pericarditis

Question 17

3 layers of heart wall

Answer 17

epicardium–surface
myocardium–muscle
endocardium–inside

Question 18

Heart thickness

Answer 18

atria are thin walled, delivers blood to adjacent ventricles
ventricles are thicker and stronger, supply blood to lungs

Question 19

What side pumps blood to the body?

Answer 19

systematic circulation: the left side pumps through oxygenated blood

Question 20

pulmonary circulation

Answer 20

pumps deoxygenated blood to the lungs

Question 21

what are the four coronary arteries

Answer 21

Circumflex
anterior
marginal
posterior

Question 22

what are pace makers

Answer 22

Cardiac muscle cells are autorythmic cells which are pace makers

Question 23

What is sick sinus syndrome?

Answer 23

abnormally functioning SA node that initiates irregular heart beat

Question 24

Cardiac muscles relies on what for ATP production

Answer 24

Cardiac muscles relies on aerobic cellular respiration for ATP production

Question 25

Blood from body enters ___ This chamber is the thickest____ This chamber contains fossa ovalis__ This chamber pumps blood to the lungs__

Answer 25

Blood from body enters RIGHT ATRIUM This chamber is the thickest LEFT VENTRICLE This chamber contains fossa ovalis RIGHT ATRIUM This chamber pumps blood to the lungs RIGHT VENTRICLE

Question 26

which veins do not drain directly into right atrium?

Answer 26

External Jugular

Question 27

In lead ll EKG record which two action potentials overlap

Answer 27

Atrial repolarizatin and ventricular depolarization

Question 28

what is purkinje fibers

Answer 28

muscle