NERVOUS SYSTEM Flashcards
Has convoluted surface
Brain
Brain ridges
Gyri
Brain grooves
Sulci
Highly convoluted brain surface is equivalent to higher total cortical area which signifies higher or more complex _________
behaviors and thought processes
the largest portion of the brain, functions in the interpretation of sensory impulses and the coordination of voluntary movements. Responsible for higher functions such as memory and learning.
CEREBRUM
Primarily a reflex center for the integration of skeletal muscle movements. Responsible for coordination and balance.
CEREBELLUM
Lobes of the Brain
Frontal lobe
Temporal lobe
Parietal lobe
Occipital lobes
Lobes of the Brain
controls fine movement and responsible for higher functions such as language, memory, emotional expression and personality.
Frontal lobe
Lobes of the Brain
processes auditory signals and some visual information
Temporal lobe
Lobes of the Brain
handles basic body information provided by touch receptors, muscle receptors, and joint receptors.
Parietal lobe
Lobes of the Brain
processes visual information
Occipital lobes
Cranial Nerves of the Mammalian Brain
Oh Oh Oh To Touch And Feel Very Good Vagina, Ah Heaven
I Olfactory
II Optic
III Oculomotor
IV Trochlear
V Trigeminal
VI Abducens
VII Facial
VIII Acoustic
IX Glossopharyngeal
x AVagus
XI Accessory
XII Hypoglossal
Cranial Nerves of the Mammalian Brain
Superficial Origin on Brain:
Pyriform lobe lateral to optic chiasma
Distribution:
Neurosensory cells of nasal epithelium
Olfactory
Cranial Nerves of the Mammalian Brain
Superficial Origin on Brain:
Cerebrum near cranial end of hypothalamus
Distribution:
Sensory fibers of retina
Optic
Cranial Nerves of the Mammalian Brain
Superficial Origin on Brain:
Cerebral peduncles
Distribution:
Dorsal, ventral, and medial recti, and ventral oblique muscles of the eye
Oculomotor
Cranial Nerves of the Mammalian Brain
Superficial Origin on Brain:
Dorsal surface of mesencephalon anterior to pons
Distribution:
Dorsal oblique eye muscle
Trochlear
Cranial Nerves of the Mammalian Brain
Superficial Origin on Brain:
Posterior portion of pons
Distribution:
Ophthalmic branch innervates facial skin near eye and nose; maxillary branch innervates jaw muscles; mandibular branch innervates lower lip, tongue, teeth, lower jaw, and muscles of mastication
Trigeminal
Cranial Nerves of the Mammalian Brain
Superficial Origin on Brain:
Medulla oblongata
Distribution:
Lateral rectus and retractor bulbi eye muscles
Abducens
Cranial Nerves of the Mammalian Brain
Superficial Origin on Brain:
Medulla oblongata
Distribution:
Facial and digastric muscles; mandibular, sublingual, and lacrimal glands; taste buds (sensory innervation of the anterior two-thirds of the tongue)
facial
Cranial Nerves of the Mammalian Brain
Superficial Origin on Brain:
Medulla oblongata
Distribution:
Sensory hair cells of inner ear and semicircular canals
Pharyngeal muscles and tongue (posterior one-third) Pharynx, larynx, heart, lungs, diaphragm, and stomach Cleidomastoid, sternomastoid, and trapezius muscles Muscles of the throat and tongue
acoustic
Cranial Nerves of the Mammalian Brain
Superficial Origin on Brain:
Medulla oblongata
Distribution:
Pharyngeal muscles and tongue (posterior one-third)
glossopharyngeal
Cranial Nerves of the Mammalian Brain
Superficial Origin on Brain:
Medulla oblongata
Distribution:
Pharynx, larynx, heart, lungs, diaphragm, and stomach
Vagus
Cranial Nerves of the Mammalian Brain
Superficial Origin on Brain:
Medulla oblongata
Distribution:
Cleidomastoid, sternomastoid, and trapezius muscles
Accessory
Cranial Nerves of the Mammalian Brain
Superficial Origin on Brain:
Medulla oblongata
Distribution:
Muscles of the throat and tongue
hypoglossal
