Which of the following is a primary lymphatic organ?

A. Thymus
B. Tonsil
C. Spleen
D. Lymph node


Answer: A

Anatomy & Physiology

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_____ is redness and irritation caused by an injury or abnormal stimulation by a physical, chemical, or biologic agent. Select one:

a. erythema b. allergy c. inflammation d. immunity

Anatomy & Physiology

Nicotinic receptors are activated by the tobacco plant derivative nicotine, whereas muscarinic receptors are activated by the mushroom poison muscarine

a. True b. False Indicate whether the statement is true or false

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Spermatogenesis is regulated by ________.

A. progesterone B. FSH C. testosterone and its derivatives D. growth hormone

Anatomy & Physiology

Sheaths of ________ cells often enclose the larger axons outside of the brain and spinal cord.

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

Anatomy & Physiology