Topic 7 further anatomy Flashcards
Functions of skin (PRESS)
Protection: from impact and UV
Regulation of temp: Hair,vasodilation(get red/hot)
Excretion: sebaceous gland secrtes sebum, water urea
Sensation: nerves for pain, pressure, temp
Synthesis: vitamin D production
State the layers of the skin and their functions (3)
Epidermis: Outermost layer of skin, acts as a barrier and protects
dermis: innner layer which contains structures like blood vessels
glands: structure which produces (sweat or oil)
fat: serves as an insultor to maintain heat
Draw and label the principal structures of the brain
Top: is cerebrum
back botom: cerebellum
middle:diecephalon
Bottom:brain stem
functions Cerebrum (3)
sensory:receiving sensory impulse
association: interpreting, intiating respons
motor: transmiting impulses to effectors
Diencephalon (6)
- relays information between different parts of the brain
- split into two: hypo + thalamus
- thalamus helps with the perception of senses
- Regulation of sleep by suppressings sensory information which may wake up an individual
- Hypothalamus maintains homeostasis
- regulates pituitary gland to release hormones like HGH
- controls HR + breathing - autonomic nervous system
Function of cerebellum and parietal lobe in a gymnastic routine (5)
cerebellum:
- evaluates movements initiated by the cerebrum
-smooth and coordinated contractions
-regulates posture and balance
Parietal:
- determine orientation of one body part to another
- determine shape of an object without looking at it
-storage of past experiences
Two functions of frontal lobe
decision making
planning solving
motivation
Two functions of temporal
Auditory sensory
involved with long-term memory
Outline two arteries which blood travels from the Aorta trunk to the blood brain barrier
A- aorta trunk
B- Brachiochephalic trunk
C- carotid artery
v- verterbral arteries
Which process is the principal provider of energy in the brain?
aerobic respiration
Describe the need for glucose and oxygen by the brain (3)
- glucose and oxygen are used to make atp
- glucose storage in the brain is limited
- if there isn’t enough glucose, may feel dizy
describe the process of energy production and supply to brain cells (4)
-Glucose is the main fuel source of the brain
- glucose diffuses through blood brain barrier to reach brain
- This process is aerobic
- Glucose storage in the brain is limited there glucose must be supplied continuous;y
function of the brain barrier
Protective layer between blood and brain (protect brain)
Barrier to block: bacteria, fungi, pathogens
Only water and certain gases + glucose are allowed through