Chapter 6 Muscles Flashcards Preview

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Flashcards in Chapter 6 Muscles Deck (25):
0

What are the three types of Muscle Tissue?

skeletal muscle
cardiac muscle
smooth muscle

1

Most skeletal muscles attach one _________ to another.

bone

2

What are the three part of a skeletal muscle?

Origin
Insertion
Body

3

Origin of the skeletal muscle

the muscle attached to a stationary bone

4

insertion of the skeletal muscle

the muscle's attachment to a more movable bone

5

body of a skeletal muscle

the rest of the muscle

6

what do muscles attach to bones by?

tendons

7

What are the functions of the skeletal muscle?

movement
posture
treat productions

8

How do Prime movers work with Synergists and Antagonists?

as prime movers and synergist muscles at a joint contract. WHen antagonist muscle contract, the produce a movement opposite to that of the prome movers and thin synergist muscles

9

What type of muscle contraction maintains our posture?

tonic contraction

10

What is the difference between fever and hypothermia?

Hypothermia- any decrease in temperature below normal

Fever- elevation in body temperature of a degree or two or more is almost always a sign of illness

11

Where does the heat required to maintain our normal body temperature come from?

the heat released during muscular contraction

12

What happens to the muscle cells that continuously stimulated without proper rest?

the strength of the muscle contraction decreases resulting in fatigue.

13

What is ATP require for ?

muscle contraction

14

When oxygen runs low our muscle use a type of energy that does not require oxygen and often leads to the build up of ________
causing your muscle to be sore

lactic acid

15

why do we have labored breathing after excercise?

to get oxygen

16

What two things meet at a neuromuscular junction?

nerve ending and muscle fiber

17

Explain how individual muscle fibers have all or none reaction to muscle stimulus.

when a muscle fiber is subjective to a threshold stimulus it contracts completely

18

What are the types of skeletal muscle contractions?

twitch
tetanic
isotonic
isometric

19

What happens to muscles during and extended period of time of inactivity?

muscles shrink in mass

20

What to we call this decrease of a muscle ?

disuse atrophy

21

what do we call an increase of a muscle ?

hypertrophy

22

what is the difference between Aerobic and Anaerobic exercise?

Aerobic exercise doesn't result in muscle hypertrophy it increases muscle's ability to sustain moderate exercise over a long period. Anarobic exercise in primarily isotonic movement

23

isotonic excercise

pushing a wall

not really any muscles contract

24

isotonic exercise

running
bicycling
makes your muscle bigger