Page 292 - Anatomy and Physiology of Farm Animals, 8th Edition
P. 292
The Integument / 277
(A)
VetBooks.ir Medulla Hair
Cortex
Cuticle
Epidermis
Dermal root sheath
Sebaceous gland
External epithelial
root sheath
Internal epithelial Arrector pili muscle
root sheath
Connective tissue
Hair matrix
Dermal papilla
Capillaries
(B)
Figure 14-3. (A) Single hair follicle. Epidermal cells adjacent to the dermal papilla give rise to the kera-
tin of the hair. (B) Photomicrograph of haired skin (equine). 1, dermis; 2, epidermis; 3, hair; 4, dermal
papilla; 5, hair follicle; 6, sebaceous gland; 7, sweat gland. Source: Bacha and Bacha, 2012. Reproduced
with permission of John Wiley & Sons, Inc.
