With Regard to Skeletal Muscle Contraction,which Event Comes First

question 42

Multiple Choice

With regard to skeletal muscle contraction,which event comes first?

• A) crossbridge formation between actin and myosin
• B) release of calcium from the sarcoplasmic reticulum
• C) activation of the NM receptor within the neuromuscular junction
• D) release of neurotransmitter (ACh)from the somatic motor neuron

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Definitions:

Kyphosis

A forward rounding of the back, leading to a hunched posture, which can be due to various medical conditions.

External Auditory Meatus

The ear canal, a pathway running from the outer ear to the middle ear.

Temporal Bone

The temporal bone is a large bone at the side and base of the skull, which houses the structures of the ear.

Paget's Disease

A long-term skeletal disorder characterized by the enlargement and deformity of bones resulting from irregular bone loss and regeneration.