With Regard to Skeletal Muscle Contraction,which Event Comes First

question 32

Multiple Choice

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

• A)Cross-bridge 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

---

Definitions:

Distribution Pattern

The spatial arrangement of organisms within a particular ecoy or habitat, influenced by environmental factors and species interactions.

Environmental Factor

An element of the physical or biological world that can influence the survival, development, or evolution of organisms.

Competition

An ecological interaction where individuals or species compete for limited resources, affecting their growth and survival.

Least Developed Countries

Countries recognized by the United Nations for their low socioeconomic development and human assets.