A network of blood vessels that supply nutrients to feed the hair and help it grow is called the:

• Papilla

• Medulla

• Follicle

• Follicular Tag

• Cortical Fusi

The club-shaped structure in the skin from which hair is produced is the:

• Papilla

• Medulla

• Follicle

• Follicular Tag

• Cortex

The gland which secretes oil and causes hair to be oily is the:

• Sebaceous gland

• Apocrine gland

• Eccrine gland

• Adrenal gland

• Pineal gland

Muscles that cause hair to stand upright are called:

• Papilla muscles

• Medulla muscles

• Follicle muscles

• Erector muscles

• Cortical muscles

Small sacs of air within the hair shaft are called:

• Papilla

• Medulla

• Follicle

• Follicular Tag

• Cortical Fusi

The central core of the hair is the:

• Cuticle

• Medulla

• Follicle

• Cortex

The layer of hair that contains pigment granules is the:

• Cuticle

• Medulla

• Follicle

• Cortex

The part of hair which can be analyzed for DNA is the:

• Cuticle

• Medulla

• Follicle

• Follicular Tag

• Cortex

The transparent outer layer of the hair is the:

• Cuticle

• Medulla

• Follicle

• Cortex

Hairs from this racial group usually have a round cross section and a large diameter:

• African

• Asian

• European