Functions and Roles in Human Biology

This video provides a comprehensive review of AMP1, covering the integumentary, nervous, and endocrine systems. It explains the structure and function of skin, hair, and nails, discusses the nervous system's components like the parasympathetic system and reflex arcs, and details various hormones in the endocrine system. The video also touches on related topics such as skin cancer risks, acne, and the effects of burns, concluding with a review of the meninges and the pineal gland.

What is the primary function of keratin in the skin?

• To regulate body temperature

• To produce sebum

• To keep the skin waterproof

• To provide color to the skin

Which layer of the skin contains blood vessels, nerves, and hair follicles?

• Epidermis

• Dermis

• Hypodermis

• Stratum corneum

What role does the parasympathetic nervous system play?

• It prepares the body for fight or flight

• It dominates during rest and digestion

• It controls voluntary muscle movements

• It regulates the body's stress response

What is the function of Schwann cells in the peripheral nervous system?

• They regulate heart rate

• They produce cerebrospinal fluid

• They form the myelin sheath around axons

• They control the iris

Which cranial nerve is responsible for hearing and balance?

• Vestibulocochlear nerve

• Trochlear nerve

• Accessory nerve

• Vagus nerve

What hormone is responsible for lowering blood sugar levels after eating?

• Glucagon

• Cortisol

• Insulin

• Thyroxine

Which hormone is known to increase during stress to help manage energy needs?

• Thyroxine

• Cortisol

• Insulin

• Growth hormone

What is the primary function of calcitonin?

• To increase blood calcium levels

• To lower blood calcium levels

• To regulate metabolism

• To stimulate milk production

Which degree of burn affects the epidermis, dermis, and hypodermis?

• Second degree

• Fourth degree

• Third degree

• First degree

What is the function of the pineal gland?

• To secrete growth hormone

• To regulate the circadian rhythm

• To produce insulin

• To control voluntary movements