Which of the following muscles is the most active when doing push-ups?

A. Pectoralis minor
B. Trapezius
C. Pectoralis major
D. Biceps brachii
E. Latissimus dorsi


Answer: C

Anatomy & Physiology

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The process of the decrease in size of any organ, such as the thymus gland, with age is ________.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

Which of the following structures sets the pace of heart contraction?

atrioventricular bundle SA node bundle branches AV node

Anatomy & Physiology

Absorption of O2 from blood and release of CO2 from tissue cells is known as

A) external respiration. B) internal respiration. C) pulmonary ventilation. D) gas diffusion. E) alveolar ventilation.

Anatomy & Physiology

An infected blackhead is a papule.

Answer the following statement true (T) or false (F)

Anatomy & Physiology