Glands

Question 1

Sebaceous (exocrine)

Answer 1

oil glands. connected to hair follicles. secreting portion lies in the dermis and opens into the neck of a hair follicle. some location the gland opens directly onto the skin. absent in palms and soles of feet. secret sebum. (coats surface of skin and hairs - keeps them from drying and becoming brittle)

Question 2

Sudoriferous(exocrine)

Answer 2

3-4 million of these. (Sweat glands) the cells of these glands release sweat, or perspiration into hair follicles or onto the skin surface through pores.

Question 3

Ceruminous(exocrine)

Answer 3

In the external ear. produce ear wax(cerumen). secretory portions lie in the subcutaneous layer, deep to the sebaceous glands. their excretory ducts open either directly onto the surface of the external auditory canal or into ducts of sebaceous glands. Cerumen provides a sticky barrier that impedes the entrance of foreign bodies and insects. also prevents bacteria and fungi from entering the ear.

Question 4

Apocrine (type of sweat gland)

Answer 4

simple, coiled, tubular glands but have larger ducts and lumens than eccrine glands. found mainly in the armpit, groin, nipples, and bearded regions in the faces of males. secretion is via exocytosis. secretory portion is located in the lower dermis or upper subcutaneous layer and the excretory duct opens into hair follicles. apocrine sweat is visually milky or yellowish. when mixed with bacteria on skin produces body order. do not function until after puberty. also active during emotional sweating. also active during sexual activities. no role in thermoregulation.

Question 5

Eccrine(type of sweat gland)

Answer 5

Simple, coiled, tubular glands that are much more common than apocrine glands. in most regions of body especially forehead, palms, and soles. not in lips, nail beds, clit, penis, or eardrums. the secretory portion of eccrine sweat glands is located mostly in the deep dermis. the duct projects through the dermis and epidermis and ends as a pore at the surface of the epidermis. purpose of these glands is to maintain thermoregulation. also release of some toxins. also responsible for emotional sweating.