Unit 6: The Integumentary System Flashcards
What are the components of the inegumentary system?
The Skin, hair, nails, glands, specialized nerve receptors
What are the functions of the skin?
Regulates body temperature, waterproofs the body, excretes waste, home to sensory neurons, and protects organs and other tissues
What are the functions of the hair?
Filters air that enters the nose and ears, protects scalp from burning, protects eyes, and assists in regulating body temperature
What are the functions of the nails?
protect fingers and toes, used fro grasping and itching
What are the functions of the oil and sweat glands?
sweat glands help regulate body temperature and excrete waste.
Oil glands excrete sebum at the base of hair folicles which helps moisturize skin and hair.
What are the functions of specialized nerve receptors?
Senses external stimuli, touch and taste.
What makes up the Epidermis?
Primarily Composed of stratified epithelium, alayer of densely packed cells
What makes up the Dermis?
It contains epithelium, not as dense as the epidermis, but it is home to roots of hair follicles, oil glands, blood vessels and sensory tissues
What makes up the subcutaneous?
mostly adipose tissues, acts as a cushion
What are the connective tissues in the integumentary system?
Reticular, collagen and elastic fibres
What are the functions of the connective tissues?
Structural support of the body, diffusing gases liquids and waste, storage & insulation through adipose tissues, defense protects from injury and infection.
How does the integumentary system assist in cooling the body?
The blood vessels near the skin dilate, allowing more blood to flow close to the skin, sweat is produced and evaporated, cooling the skin and the blood below. this blood circulates through the body
How does the integumentary system assist in warming the body?
Sweat stops being produced, and the blood vessels near the surface constrict. Heat is more effectively retained
