Anatomy Flashcards
Governs sensory and motor activitity, thought and learning
Cerebrum
Consists of right and left hemisphere
Cerebrum
Outer gray layer that is divided into five lobes
Cerebral cortex
Responsible for the conscious activities of the cerebrum
Cerebral cortex
Help cerebral cortex produce smooth voluntary movements
Basal ganglia
Consists of thalamus and hypothalamus
Diencephalon
Relays sensory impulses to the cortex and provides pain gate
Thalamus
Regulates autonomic responses, regulates stress response, sleep, apetite, body temperature, fluid balance, emotionx
Hypothalamus
Responsible for the production of hormones
Hypothalamus
Parts of Brainstem
Midbrain
Pons
Medulla Oblongata
Responsible for motor coordination, contains visual reflex and auditory relay centers
Midbrain
Contains respiratory centers and regulates breathing
Ponz
Contains all afferent and efferent tracts and cardiac, respiratory, vomiting, and vasomotor centers
Medulla Oblongata
Cotrols HR, RR, Blood vessel diameter, sneezing, swallowing, vomiting, and coughing
Medulla oblongata
Coordinates muscle movement, posture, and muscle tone
Cerebellum
Provides neuron and synapse networks to produce involuntary responses to sensory stimulation
Spinal cord
Controls body movement, carries sensory information and motor information from the brain
Spinal corc
Extends from first cervical to the second lumbar vertebra
Spinal cord
What protects spinal cord?
Meninges
CSF
Adipose tissue
What lobe? Brocas area production of speech
Frontal lobe
Moral, emotions, reasoning, judgement, concentration, abstraction, memory retention
Frontal lobe
Interpretation of taste, pain, touch, temperature, and pressure
Parietal lobes
Spatial perception
Parietal lobe
Auditory center
Temporal lobe
Wernickes area for comprehension of speech
Temporal lobe
Visual area
Occipital lobe
Formed by arachnoid membrane and pia matter
Subarachnoid space
Aids in exchange of nutrients and wastes
CSF
Where does CSF is secretd? Where does it circulates?
Secreted: Ventricles
Circulates: Subarachnoid space
CSF Normal pressure
6 to 25 cm H2O
CSF Normal volume
125 to 150 mL
CSF: how many mL a day is produced?
500 mL/day
Enumerate tne neurotransmitters
Acetylcholine
Epinephrine
Norepinephrine
Dopamine
Serotonin
GABA
Carries impulses from PNS to CNS
Sensory Impulses
Carries away impulses away from CNS
Motor neurons
Conducts impulses from the cell body
Axon
Receive stimuli from the body then transmit them to the ___
Dendrites and axon
ANS - Voluntary or Involuntary?
Involuntary
NOREPEINEPHRINE is the main neurotransmitter: Dilate pupil, inc. HR, inc. BP, bronchodilation, inc. RR, dry mouth, urinary retention, constipation (dt dec. blood in git)
Sympathetic NS (Adrenergic – Dry) – Fight or Flight
ACETYLCHOLINE is the main neurotransmitter: Constrict pupil (miosis), dec. BP, HR, RR, inc. salivation, urinary frequency, diarrhea,
Parasympathethic NS (cholinergic - wet) – Rest and digest
