Sweat glands

This tutorial explores the histology of sweat glands, focusing on their structure and function. It covers the layers of the skin, the anatomy of exocrine glands, and the differences between eccrine and apocrine sweat glands. The video also discusses clinical conditions like hyperhidrosis and cylindroma, providing insights into their causes and treatments. The tutorial concludes with a review of key concepts, emphasizing the importance of understanding sweat gland histology.

What are the two main types of sweat glands discussed in the tutorial?

• Sebaceous and eccrine

• Eccrine and apocrine

• Endocrine and exocrine

• Apocrine and sebaceous

Which layer of the skin is known for being tightly packed to prevent foreign matter from entering the body?

• Epidermis

• Basal lamina

• Subcutaneous fat

• Dermis

Which layer of the skin contains dense irregular connective tissue?

• Subcutaneous fat

• Dermis

• Stratum corneum

• Epidermis

What is the primary function of myoepithelial cells in sweat glands?

• To form the basal lamina

• To absorb nutrients

• To contract and help expel secretions

• To produce sweat

What type of epithelium is found in the secretory portion of eccrine sweat glands?

• Pseudostratified columnar

• Stratified squamous

• Simple cuboidal

• Transitional

Where are apocrine sweat glands primarily located?

• Forehead

• Palms of the hands

• Hairy areas like the armpit

• Soles of the feet

What condition is characterized by excessive sweating not related to heat?

• Cylindroma

• Hyperhidrosis

• Psoriasis

• Eczema

What is a common treatment for hyperhidrosis?

• Chemotherapy

• Radiation therapy

• Botulinum toxin injections

• Antibiotics

What type of tumor can arise from eccrine sweat glands?

• Melanoma

• Cylindroma

• Squamous cell carcinoma

• Basal cell carcinoma

What is the appearance of cylindroma under the microscope?

• Smooth and uniform

• Jigsaw puzzle-like

• Circular and concentric

• Spiky and irregular