Anatomy Practicum Flashcards
Corpus Callosum
Relays infor between L and R hemispheres of cerebrum
Pinal Body
Produces melatonin. Regulates circadian rhythm
Thalamus
Relays sensory info to the cerebrum
Pyriform Lobe
Processes scent
Gray matter
regions of the brain unmyelinated neurons, neuronal cells
Spinal Cord
Carries information from brain to the body and vice versa
Pons
Sends signals to cerebellum and forebrain. Mediates sleep and arousal
Cerebrospinal Fluid
Protects brain and spinal cord, delivers nutrients to nervous tissue, removes waste products from cerebral metabolism
Cerebellar Vermis
Proprioception
Cerebellar Hemispheres
Motor Control
Temporal lobe
processing and perceiving sound, memory
medial longitude fissure
divides the cerebrum into the L and R hemispheres
Rhinal Fissure
divides the cerebrum from the underlying
Sylvian Fissure
Divides the frontal lobe from the temporal
Optic chiasm
part of the brain where the optic nerves partially cross
Olfactory Bulb
Nerve: 1 (I)
Function: processing oder
Optic
Nerve: 2 (II)
Function Transmit sensory info from the eye
Oculomotor
Nerve: 3 (III)
Function: Innervates muscles that move the eye, control eyelid elevation and pupillary constriction/accommodation
Trochlear
Nerve: 4 (IV)
Function: responsible for both lateral and vertical eye movement
Trigeminal
Nerve: 5 (V)
Function: Transmit info from face
Sensory: information from the skin, muscles, bone and teeth
Motor: biting, chewing, swallowing
Facial
Nerve: 7 (VII)
Function: Inneervates muscles of scalp and face. Taste.
Sensory: taste from the tongue
Motor: Facial expression, innervates salivary glands and tear glands
Vagus
Nerve: 10 (X)
Function: Innervates pharyngeal muscles, vocal cords, larynx, heart lungs, digestive organs. Sensory info from the viscera of abdomen and chest
Cerebellum
Fine motor control, motor coordination
Thalamus
Relays sensory info to cerebrum
Midbrain
Regulates eye movement and pupil dilation. Assists in motor control
Choroid Plexus
Produces CSF
Caudate Nucleus
involved in motor coordination
Hippocampus
Learning and Memory
What 2 structures are part of the midbrain
superior colliculus and inferior colliculus
3 layers of meninges
- Dura mater
- Arachnoid mater
- Pia mater
4 lobes of the cerebrum
- Frontal
- Parietal
- Temporal
- occipital
White Matter
Regions of the brain with myelinated neurons
What structures separate the L and R ventricles
Septum Pellucidum
2 cranial nerves that are purely sensory nerves
- Vestibulocochlear (VIII)
- Optic
- Olfactory
The cerebral aqueduct connects 2 ventricles
3rd and 4th
The parietal lobe is X to the temporal lobe, and is responsible for X
Dorsal, sensory integration
The arachnoid mater is the X of the meninges and serves to X
2nd layer, protect the brain
The X nerve carries visual info to the brain and is X to the hypothalamus
Optic, anterior/ rostral
Both the X and X nerves transmit sensory information from the tongue
facial and glossopharyngeal
Medulla
Controls autonomic functions
Midbrain
regulates eye movement and pupil dilation. Assists in motor control
Hypothalamus
Regulates ANS; synthesizes hormones, regulates body temp, thirst, hunger, circadian rhythm
Meninges
Protects the brain and spinal cords
Cerebellum
Fine motor control, motor coordination
Cerebrum
Movement, sensory processing, smell, language, communication, learning, memory
Frontal lobe
reasoning, personality, attention
Parietal lobe
processing sensory info from the body, processing spatial info and language
Occipital lobe
processing and perceiving vision
Gyri
On L hemisphere
Increase the surface area of the brain and allow it to fit within the skull
Sulcus
On R hemisphere
Increase the surface area of the brain and allow it to fit within the skull
Pyriform Lobe
Processing of olfactory sensory info
Pyramidal tract
relay info between the cerebral cortex and the spinal cord
Abducens
Nerve: 6 (VI)
Function: lateral eye movement
Vestibulocochlear
Nerve: 8 (VIII)
Function: Balance and hearing
Glossopharyngeal
Nerve: 9 (IX)
Function: Salivary production. sentation from pharynx, swallowing, taste
Hypoglossal
Nerve: 12 (XII)
Function: controls the muscles of the tongue
Superior Colliculus
receives input from eyes. Control eye movement
Inferior Colliculus
relay station for auditory info en route to the thalamus. Receives input from ears
2 structures form the cerebellum
cerebellar vermis and cerebellar hemisphere
The X nerves are responsible for eye movement and are located caudal to the X nerve
Oculomotor/trochlear/abducens; optic
Spinal Accessory Nerve
Nerve: 11 (XI)
Function: controls the muscles of the neck and shoulders
Lateral Ventricle
The CSF filled space within each cerebral hemisphere
Thalamus
relays sensory info to the cerebrum