What structure stands hairs on end, causing piloerection?

A) epithelial root sheath B) epidermal ridges
C) dermal papillae D) arrector pili muscle


Answer: D

Anatomy & Physiology

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Compare the three types of muscle tissue. List three similarities and three differences among them

Anatomy & Physiology

Which salivary gland produces a serous secretion containing large amounts of salivary amylase?

A) mandibular B) sublingual C) lingual D) submandibular E) parotid

Anatomy & Physiology

Ringworm is a fungal infection

Indicate whether the statement is true or false

Anatomy & Physiology

T cells make up approximately _____% of lymphocytes. Select one:

a. 20 b. 40 c. 60 d. 80

Anatomy & Physiology