Muscular

Question 1

What are the 3 types of muscle tissue?

Answer 1

skeletal, cardiac, smooth

Question 2

There are over 600 muscles in the human body. T or F.

Answer 2

True

Question 3

Muscle tissue have an electric gradient which can reverse when stimulated

Answer 3

Excitability

Question 4

All muscle tissues have the ability to contract, or shorten

Answer 4

Contraction

Question 5

All muscle tissues share the capacity to elongate, or relax

Answer 5

Elongate

Question 6

Are skeletal muscle voluntary or involuntary?

Answer 6

Voluntary

Question 7

Skeletal muscles are known as ___ muscle due to their stripped appearance under a microscope

Answer 7

striated

Question 8

Skeletal muscles are composed of muscle fibers (cells) that are bound together in ___ ___.

Answer 8

parallel bundles

Question 9

Are smooth muscles voluntary or involuntary muscles?

Answer 9

Involuntary

Question 10

Where is smooth muscle tissue found?

Answer 10

walls of internal organs; sphincters and valves

Question 11

Smooth muscle tissue aka visceral tissue is ___

Answer 11

nonstriated

Question 12

Is cardiac muscle voluntary or involuntary?

Answer 12

Involuntary

Question 13

Cardiac muscle tissue is ____.

Answer 13

Striated

Question 14

Each muscle fiber contains a bundle of ___

Answer 14

myofibrils

Question 15

Myofibrils are composted of multiple repeating control units called ___.

Answer 15

sarcomeres

Question 16

Myofibrils contain 2 protein microfilaments. They are __ and __ filament.

Answer 16

thick; thin

Question 17

Thick vs. thin microfilament

Answer 17

Thick: composed of protein myosin

Thin: composed of protein actin

Question 18

When do dark bands (striations) in skeletal muscle form?

Answer 18

when think and thin filaments overlap

Question 19

When do light bands occur?

Answer 19

when thin filament is overlapped

Question 20

When action potential reaches a muscle fiber, what is released?

Answer 20

calcium ions

Question 21

___ ___ is released from glucose provides the energy necessary for muscle contraction.

Answer 21

Adenosine triphosphate