The Central Nervous System - The Brain (Leaving Cert Biology): Flashcards
📚Flashcards
Practise the cards
15 cards from this deck
ShowHide
Practise the cards
15 cards from this deck
Composition of grey matter
Composition of grey matter
Cell bodies and dendrites
Composition of white matter
Composition of white matter
Axons
What are the meninges?
What are the meninges?
Three layers of membranes surrounding the brain
Function of cerebrospinal fluid (CSF)
Function of cerebrospinal fluid (CSF)
Protects the brain
What is meningitis?
What is meningitis?
Infection of meninges (viral or bacterial)
Three main parts of the brain
Three main parts of the brain
Forebrain, midbrain, hindbrain
Main functions of cerebrum
Main functions of cerebrum
Thought, memory, sensory activities, motor control
Right cerebrum hemisphere controls which side?
Right cerebrum hemisphere controls which side?
Left side of body
Function of thalamus
Function of thalamus
Directs sensory messages to cerebrum; controls emotions
What does hypothalamus regulate?
What does hypothalamus regulate?
Homeostasis: temp, appetite, thirst, heart rate, BP, etc.
Function of cerebellum
Function of cerebellum
Controls balance and muscular coordination
What does medulla oblongata control?
What does medulla oblongata control?
Involuntary functions: breathing, heart rate, swallowing
What does pineal gland secrete?
What does pineal gland secrete?
Melatonin (regulates sleep/wake cycles)
How many pairs of spinal nerves?
How many pairs of spinal nerves?
31 pairs
Function of dorsal root
Function of dorsal root
Carries sensory neurons into spinal cord