Melanocytes are present in which layer of the skin?
ক
Stratum basale
খ
Stratum spinosum
গ
Stratum corneum
ঘ
Stratum granulosum
৩.
Sebaceous glands are absent in-
ক
Palm
খ
Areola
গ
Eyelid
ঘ
Margins of lip
৪.
Example of holocrine gland-
ক
Sweat glands
খ
Lactating mammary gland
গ
Sebaceous gland
ঘ
Pancreatic acinar cells
৫.
Layer of epidermis only present in thick skin
ক
ক) Corneum
খ
খ) Lucidum
গ
গ) Granulosum
ঘ
ঘ) Spiunosum
৬.
Simple coiled tubular gland is present in
ক
ক) Sweat glands
খ
খ) Sebaceous gland
গ
গ) Salivary gland
ঘ
ঘ) Exocrine pancreas
৭.
Layers of hair follicle excludes
ক
ক) Cuticle
খ
খ) Zonule
গ
গ) Cortex
ঘ
ঘ) Medulla
ব্যাখ্যা
A hair may be regarded as a modified part of the stratum corneum of the skin. It consists of three layers named cuticle, cortex & medulla.
৮.
Which layer of epidermis contains Langerhans cell
ক
ক) Corneum
খ
খ) Lucidum
গ
গ) Granulosum
ঘ
ঘ) Spiunosum
৯.
Holocrine gland
ক
ক) Goblet cell
খ
খ) mammary glands
গ
গ) Sweat glands
ঘ
ঘ) Sebaceous gland
ব্যাখ্যা
Sebaceous gland is a holocrine gland.
১০.
Tactile epithelial cell of skin-
ক
ক) Keratinocytes
খ
খ) Melanocytes
গ
গ) Langerhans cells
ঘ
ঘ) Merkel cells
ব্যাখ্যা
Merkel cell is responsible for tactile sensation
১১.
Simple branched acinar gland is present in
ক
ক) Sweat glands
খ
খ) Sebaceous gland
গ
গ) Salivary gland
ঘ
ঘ) Exocrine pancreas
১২.
Which is not an avascular structure?
ক
Epithelium
খ
Cornea
গ
Cartilage
ঘ
Nail-bed
ব্যাখ্যা
Although the nail is an avascular structure, most of the nail-bed has rich vascular supply.
Epithelium is an avascular structure, it receives nutrition from the underlying dermal capillaries.
Cartilage receives nutrition from the perichondrium.
Cornea receives nutrition by diffusion from the surrounding capillaries.
১৩.
Typical sweat gland is of... variety
ক
ক) Apocrine
খ
খ) Eccrine
গ
গ) Merocrine
ঘ
ঘ) Holocrine
ব্যাখ্যা
Typical sweat glands are of the merocrine variety. Their number and size vary in the skin over different parts of the body. They are most numerous in the palms and soles, the forehead and scalp, and the axillae.