CNS 3 Flashcards
what directs attention to stimuli of special interest (parent/child relationship)
Thalamus
they have a crude awareness but can’t pinpoint the location or intensity of the stimuli (just a relay station )
Thalamus
it is the site where almost all sensory stimuli come in except smell
Thalamus
Thalamus is the region where Nearly all sensory information passes through except for
olfaction, or the sense of smell)
Hypothalamus is under or above the thalamus
Under
hypothalamus makes up how many % of the brain tissue
less than 1%
what is the control center of the homeostatic function
hypothalamus
hypothalamus is the link btw ___________and _______________ystem
Nervous and endocrine systems
What brain area is most involved in regulating the internal environment (negative and positive feedback)?
hypothalamus
what controls the behaviours of the individual like eating and drinking
hypothalamus
hypothalamus is involved in the survival of the body and the species because
it is linked to 2 glands
What are the two hypothalamus glands and sub-divisions:
- Pituitary
a. posterior pituitary
b. anterior pituitary - Pineal
Oxytocin is released when?
- During childbirth
- Lactation process
What gland is involved in the release of oxytocin?
Posterior pituitary gland
Which gland is involved in gonad; sperm and ovum reproduction?
Anterior pituitary gland
which gland is involved in growth hormone and has a direct effect on metabolism?
Anterior pituitary gland
which gland is involved in the production of prolactin during pregnancy and early childhood?
Anterior pituitary gland
Prolactin plays a key role in lactation (milk production) in women
True or False
True
why can’t most breastfeeding mothers get pregnant?
because they have high levels of prolactin which reduces ovulation
what gland releases vasopressin?
posterior pituitary gland
What is the function of vasopressin?
regulate kidney function (fluid intake and excretion) and controls blood pressure
What kind of hormone is vasopressin?
anti diuretic hormone
which gland helps us sleep by producing melatonin?
pineal gland
what happens when melatonin production not happening at the right times of day?
Jet lag
which gland plays a role in circadian rhythm (sleep-wake cycle and the body’s internal clock)
pineal gland
____ are hormones and neurotransmitters that are involved in the body’s “fight or flight” response.
catecholamine
what secretes catecholamine
the hypothalamus
When the hypothalamus perceives a threat or stressor, it activates the autonomic/sympathetic nervous system, which in turn stimulates the adrenal glands to release catecholamines into the bloodstream.
what part of the brain is important in balancing, planning, and executing voluntary movement?
cerebellum
what are the three diff parts of the cerebellum
vestibulo cerebellum
spino cerebellum
cerebro cerebellum
which part of the cerebellum is important in maintaining balance and controlling eye movement
vestibulo cerebellum
which part of the cerebellum is involved with the inner ear to maintain equilibrium
vestibulo cerebellum
which part of the cerebellum covers precise fine voluntary movements
spino cerebellum
how does the spino cerebellum cover precise fine voluntary movement?
*looks at the intention of the higher cortex
*looks at the performance of the peripheral muscles
corrects any deviation
which part of the cerebellum enhances muscle tone and coordinates skilled voluntary movements?
spino cerebellum
which part of the cerebellum deals with skilled motor movement
spino cerebellum
what is the site of procedural memories (the site of what we do repetitively like a dancer )?
cerebro cerebellum
which part of the cerebellum plays a role in planning and initiating voluntary activity by providing input to cortical motor areas?
cerebro cerebellum
the cerebro cerebellum plays a role in planning and initiating voluntary activity by
providing input to cortical motor areas
what is the most primitive region of the CNS and its the site of the origin for the 12 cranial nerves?
brain stem
what controls life sustaining processing such as respiration, circulation and digestion
brain stem
Most of the cranial nerves innervate the head and neck except which
Cranial Nerve X: Vagus nerve
what are the twelve cranial nerves and which has sensory or motor fibers or both?
I. Olfactory - sensory fiber
II. Optic - sensory fiber
III. Oculomotor - motor fiber
IV. Trochlear - motor fiber
V. Trigeminal - both fibers
VI. Abducens - motor fiber
VII. Facial - both
VIII. Vestibulocochlear - sensory fiber
IX. Glossopharyngeal - both fibers
X. Vagus - both fibers
XI. Accessory - motor fiber
XII. Hypoglossal - motor fiber.
nerves - oh oh oh to touch and feel very gentle virgins AH
motor fibers - Some Say Marry Money But My Brother Says Big Boobs Matter More
the Brain stem consists of
midbrain
pons
medulla oblongata
which part of the brain stem never changes
midbrain
which part of the brain stem is responsible for breathing and transferring info
pons
which part of the brain stem is the vomiting center
medulla oblongata
which part of the brain stem is for eye reflexes and auditory eye movement
midbrain
which part of the brain stem controls blood pressure
medulla oblongata
which part of the brain stem is controls swallowing
medulla oblongata
the forebrain structure that encircles the brain stem?
Diencephalon which contains the hypothalamus which is part of the limbic system
