Question

The hair shaft of hair is lodged in
A. Bulb
B. Follicle
C. Papilla
D. Root

Answer 1

Hint: Hair is basically divided into two parts: Hair shaft present above the scalp and hair root ending in a hair bulb. The portion of hair under the skin is called the hair root.

Complete answer:
Hairs are made up of keratin protein and mainly consists of dead cells. The origin of these hair strands is from the hair follicle. The exposed portion of the hair is called the hair shaft. The portion of hair under the skin is called the hair root. These hair roots end in a soft portion called hair bulb which also contains a number of mitotically active cells also called hair matrix. Hair papilla is also present inside the hair bulb and has blood capillaries and nerve endings. The hair bulb is located inside the involution of the epidermis called the hair follicle. Hence, roots of hair end in a hair bulb which is soft and light in texture and is lodged in follicular involution.
Hence, option B, i.e., hair shaft of hair is lodged in the follicle.
Additional information:
Hair is made up of the epidermis and has basically two parts: hair shaft and hair follicle.
The hair shaft is part of the hair above the scalp and is made up of keratin protein. The hair bulb contains mitotically active cells to produce a hair shaft.
Hair follicle consists of :
1. Papillae: It is made up of connective tissue and capillary loop and is present at the base of the follicle
2. Hair matrix: It is present around the papillae.
3. External and internal root sheath: The external have cuboid cells and the internal has three layers namely henley's layer, huxley layer, and inner cuticle layer.
4. Bulge: It has several stem cells.

Note: Hair strands have two parts mainly the hair shaft and hair root. The hair root is present below the skin and anchors to the hair bulb present inside the hair follicle. As a result hair shafts are lodged in hair follicles.