Biology and Anatomy Quiz

What is the primary function of desmosomes?

• To provide adhesion in areas subjected to stress

• To attach epithelial cells to the basement membrane

• To aid intercellular communication

• To hold cells together and form a permeability barrier

Which type of secretion involves the shedding of entire cells?

• Apocrine

• Eccrine

• Merocrine

• Holocrine

What is the role of osteoclasts in bone tissue?

• To break down bone

• To form bone

• To store calcium

• To maintain bone

Which type of cartilage provides support with some flexibility?

• Adipose tissue

• Elastic cartilage

• Fibrocartilage

• Hyaline cartilage

What is the main function of gap junctions?

• To act as a weak glue to hold cells together

• To attach cells to the basement membrane

• To aid intercellular communication

• To hold cells together

Which layer of the skin is composed of dense, irregular connective tissue?

• Dermis

• Stratum Basale

• Epidermis

• Hypodermis

What is the primary function of sebaceous glands?

• To secrete sweat

• To secrete oils that lubricate and protect the skin

• To store fat for energy

• To produce melanin

What is the main characteristic of thick skin?

• It has all 5 epithelial strata

• Hair grows here

• It is more flexible than thin skin

• It covers the entire body

What is the function of the periosteum in bone?

• To connect bones to muscles

• To form the outer surface of the bone

• To line the medullary cavity

• To store adipose tissue

Which chemical mediator is involved in the inflammatory response?

• Carotene

• Melanin

• Chondroitin sulfate

• Histamine