B5 - Homeostasis and response Flashcards
What is the cerebral cortex?
The outer part of the brain responsible for intelligence, language, memory and consciousness
What is is the medulla?
The part of the brain that controls unconscious activities such as heart rate and breathing rate
What is the cerebellum?
The part of the brain that controls balance, co-ordination of movement and muscular activity
What is is an MRI?
A brain scanning technique
What is is acommodation?
The process of changing the shape of the lens to focus on near or distant objects
What is is myopia?
Short-sightedness
What is is hyperopia?
Long-sightedness
What is is vasodilation?
When blood vessels supplying blood to the skin widen and allow more warm blood to flow near the surface of the skin, where the heat is lost to the air
What is is vasoconstriction?
When blood vessels supplying blood to the skin narrow and allow less warm blood to flow near the surface of the skin, which reduces heat loss
What is deamination?
The removal of the amine group on amino acids to form urea
What is is selective reabsorption?
When useful substances are reabsorbed back into the blood from the kidney tubules
What is is ADH?
A hormone released from the pituitary gland which regulates the water concentration of the blood
What is Thyroxine?
A hormone released from the thyroid gland which stimulates the basal metabolic rate
What is homeostasis?
The regulation of internal conditions to maintain optimum conditions in response to changes
What is a stimulus?
A change in the environment
