-
Cranial Nerve I
- Olfactory
- Origin: olfactory blulb
- Type
: Sensory- Fxn: Smell
-
Cranial Nerve II
- Type: Sensory
- Fxn: Central and peripheral vision
-
Cranial Nerve III
- Oculomotor
- Type
: Motor to eye muscles- Fxn: eye movement via medial and lateral rectus and inferior oblique and superior rectus musc. Lid elevation via the levator musc.
- Type: Parasympathetic Motor
- Fxn: pupil constriction, ciliary muscles
-
Cranial Nerve IV
- Trochlear
- Type
: Motor- Fxn:eye movement superior to oblique musc
-
Cranial Nerve V
- Trigeminal
- Type
: Sensory- Fxn: sensation from skin of face and scalp and mucous membranes of mouth and nose
- Type: Motor
- Fxn: Muscles of mastication
-
Cranial Nerve VI
- Abducens
- Origin:
Inferior pons - Type:
Motor- Fxn: eye movement via lateral rectus musc
-
Cranial Nerve VII
- FacialOrigin: Inferior pons
- Type:
Sensory- Fxn: pain and temp from ear area. deep sensations from the face. taste from anterior 2/3 of tongue
- Type: Motor
- Fxn: musles of the face and scalp
- Type: Parasympathetic Motor
- Fxn: Lacrimal, submandibular, and sublingual salivary glands
-
Cranial Nerve VIII
- VestibulocochlearOrigin: Pons-Medulla Junction
- Type:
Sensory- Fxn: Hearing, Equilibrium
-
Cranial Nerve IX
- GlossopharygealOrigin: Medulla
- Type:
Sensory- Fxn: pain and tep from ear. sensations from posterior 1/3 of tongue and pharynx
- Type: Motor
- Fxn: Skeletal musc of throat
- Type: Parasympathetic Motor
- Fxn: Paratid Glands
-
Cranial Nerve X
- Type: Sensory
- Fxn: pain and temp from ear. sensations from pharynx, larynx, thoracic and abd viscera
- Type: Motor
- Fxn: musc of the soft palate, larynx, and pharynx
- Type: Parasympathetic motor
- Fxn: thoracic and abd viscera. cells of secretory glands. cardiac and smooth musc innervation to the level of the splenic flexure
-
Cranial Nerve XI
- AccessoryOrigin: Medulla (anterior gray horn of the cervical spine)
- Type: Motor
- Fxn: Skeletal musc of the pharynx and larynx and sternocleidomastoid and trapezius muscles
-
Cranial Nerve XII
- HypoglossalOrigin: Medulla
- Type: Motor
- Fxn: Skeletal musc of the tongue
-
Cerebrum
- Higher mental functions
- General movement
- Perception
- Integrations of all fxns of the lobes
-
Frontal Lobe
- Voluntary skeletal musc movement
- Fine repetitive motion
- Eye movements
- Motor aspects of speech
-
Parietal Lobe
- Interpretation of sensations (taste, visual, smell, hearing, temp, pressure, pain, texture, 2pt discr)
- Recognition of body parts
- Proprioception
-
Occipital Lobe
- Vision center
- Interpretation of vision
-
Temporal Lobe
- Hearing or the perception, reception, and interpretations of sounds
- Long-term memory
-
Insula (Corpus Callosum)
Coordination of activities between the two hemispheres of the cerebrum
-
Limbic System
- Mediates:
- certain primitive behavior responses
- visceral emotional responses
- feeding behaviors
- biological rhythms
- sense of smell
-
Thalamus
- Processing center for interpretation of most sensations except smell
- Relay center for sensory motor information
-
Hypothalamus
- Maintains the internal environment (temp, ANS fxn, endocrine fxn, wakefulness)
- Regulates emotional expression
-
Cerebellum
- Provides conscious and reflexive control of muscle tone
- Maintains balance and posture
-
Brainstem
- Locations of the descending and ascending motor and sensory pathways
- Connects the cerebrum, cerebellum, and spinal cord
- Locations of the origin of the 12 cranial nerves
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