Muscle

Q. All striated muscles are involuntary in nature.

1. False
2. True

Q.

Voluntary muscle contractions are initiated in____________

Q.

The muscles showing slow and prolonged contractions are ________.

Q.

Which of the following are not antagonistic muscles?

1. Flexor and extensor

2. Pronator and supinator

3. Abductor and adductor

4. Protractor and supinator

Q. Match the terminology with the correct description.

1. Ability to stretch
2. Response to stimuli
3. Ability to contract
4. Ability to recoil

Q.

Which are characteristic properties of muscles?

1. Excitability

2. Contractility

3. Extensibility

4. All of these

Q.

Regarding Assertion [A] and Reason [R], choose the correct option.

Assertion [A] : Muscles can only pull on structures not push.
Reason [R] : Skeletal muscles are often arranged in pairs that pull bones in opposite directions.

1. Assertion [A] is True and Reason [R] is False.

2. Reason [R] is True and Assertion [A] is False.

3. Assertion [A] is True and Reason [R] is True, and [R] is a correct explanation to [A].

4. Assertion [A] is True and Reason [R] is True, but [R] is not a correct explanation to [A].

Q. Skeletal muscles are often arranged in pairs that pull bones in opposite directions.

1. False
2. True