Identify the Branch of Biological Science That Studies the External

question 71

Multiple Choice

Identify the branch of biological science that studies the external and internal structure of the body and the physical relationship among body parts.

• A) genetics
• B) physiology
• C) embryology
• D) anatomy
• E) cytology

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Definitions:

T Tubule

T Tubules, or transverse tubules, are extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells, playing a crucial role in muscle contraction.

Sliding Filament Model

A theory describing the mechanism of muscle contraction, where actin and myosin filaments slide past each other to shorten the muscle fiber length.

Sarcomere

The basic unit of a muscle's cross-striated myofibril, responsible for the muscle's contractile properties.

Actin

A protein that forms filaments and is involved in various types of cell movement and structure, including muscle contraction and cell division.