Functions for nervous exam

• Physical support
• Form blood brain barrier

• Line ventricles and central canal
• In ventricles, they cover choroid plexus to help filter the blood to make csf
• In spinal cord, they circulate the csf in central canal

• Surrounding cell bodies in ganglia
• Regulate exchange of nutrients and wastes 

• Contributes to myelination of certain axons in pns
• Myelin sheath ismultiple layers of neurolemma
• Allows axon regeneration 

Areolar and adipose ct

Potential tiny space

Csf

WFCT 

Collagen and elastic fibers-delicate web

Areolar ct. Stuck on to spinal cord

Extensions of pia mater that anchor to dura mater

Cord ends and filum terminale begins

Collection of spinalnerve roots inferior to conus medullaris

• "tell Claire to lick vaginas"
• cerebrum lateral ventricles

• "dicks dive into thirsty vaginas"
• Diencephalon third ventricle

• "messy men crave attention"
• Midbrain cerebral aqueduct

• "men pay cash for vaginas"
• Pons, cerebellum, fourth ventricle

• "my mom offers family values"
• Medulla oblongata, fourth ventricle

Intellect, personality, social smarts, inhibitions,conscious control of skeletal muscle (precentral gyrus)

Conscious control of skeletal muscle

• Integrate general sensory info
• Postcentral gyrus is the primary somatosensory cortex
• Understanding language

Primart somatosensory cortex

• Interpret both auditory and olfactory info
• Houses many structures of the limbic system

Interpret visual info

Interprets taste

Caudate, lentiform (putamen and globus pallidus) 

• Form lateral walls of lateral ventricles
• Automatic limb movement for walking

Works with caudate for automatic limb movement when walking 

Works with red nuclei-muscle tone and posture 

Encode and retrieve long term memory 

Perceive fear, help encode long term memory related to emotion 

Epithalamus, thalamus and hypothalamus

• Posterior side, small
• Pineal gland

Secretes melatonin

• Sensory relay station 
• All senses except smell
• Sends info to cerebral cortex

• Mammillary bodies 
• Pituitary
• Infundibulum 

Sensory relay station for smell

• Links nervous and endocrine systems
• Controlls pituitary gland connected by infundibulum 
• Controls ANS
• Homeostatic control center-temp, thirst and hunger, satiety
• Regulates emotional behavior-rage, pleasure, sex drive 

• Cerebral peduncle 
• Corpora quadrigemina
• Red nuclei
• Substantia Nigra 

Continuation of somatic motor tracts

• Perform integration for reflexes to control neck and eye muscles
• Superior colliculi-respond to visual info
• Inferior colliculi-respond to auditory stimulus 

Muscle tone and posture

• Secretes dopamine
• Inititates movement and inhibits skeletal muscle movement 

• Vertical and horizontal tracts
• Respiratory control center 

Continuation of somatic motor and general sensory info

• Middle cerebellar peduncles-info from cerebrum to cerebellum
• Inferior cerebellar peduncles-proprioceptive info to cerebellum
• Superior cerebellar peduncles-info from cerebellum to cerebrum

Connects left and right hemispheres of cerebellum

Increase surface area of cerebellar cortex

Branched white matter

• Smooths and coordinates skeletal muscle movements
• Subconscious control of skeletal muscle
• Maintain balance-impaired by alcohol

• Olives
• Pyramids

Continuation of general sensory tracts

Relay proprioceptive info to cerebellum

• Somatic motor tracts
• Decussation 

• Cardiovascular control center
• Respiratory control center 
• Various reflexes-sneeze, cough, vomit

Phrenic nerve

Radial, median, ulnar nerve

Femoral nerve

• Sciatic nerve
• -tibial nerve and common fibular nerve

• Olfactory 
• Olfaction/taste

• Optic
• Vision

• Oculomotor
• Sns-eye muscle control
• Para-constrict pupil

• Trochlear
• Eye muscle control

• Trigeminal
• Opthalamic-touch, pain, pressure
• Maxillary-same
• Mandibular-same 

• Abducens
• Eye muscle control

• Facial
• Sns-facial expression
• Parasympathetic-lacrimal and salivary secretion
• Sensory taste 

• Vestibulo-cochlear
• Vestibular-equlibrium
• Cochlear-hearing

• Glossopharyngeal
• Sns motor-swallowing
• Para-salivation
• Sensory-taste

• Vagus
• Sns motor-swallowing and speech
• Para-control of heart, smooth muscle of airways and gi tract
• -recurrent laryngeal
• Sns motor-speech

• Accessory
• Sns motor-swallowipave overt of head and neck

• Hypoglossal
• Sns motor-tongue. Swallowing and speech 

Diaphragm 

Posterior muscles of arm-triceps brachii, brachioradialis 

Anterior forearm flexors-palmar is longus, flexor Capri radialis

Anterior forearm flexors-flexor Capri ulnaris

Muscles of ant thigh-quads , sartorius

Skin of medial thigh

• Branches into 
• Tibial-posterior muscles of thigh-hamstrings
• Common fibular-anterior and lateral muscles-tibiasis anterior