SNC Flashcards
Which of the following neurotransmitters is associated with inhibition exclusively?
GABA
What neurotransmitter is released at the neuromuscular junction?
ACETYLCHOLINE
What ion enters a neuron causing depolarization of the cell membrane?
Sodium
Which part of a neuron contains the nucleus?
soma
Which structure predominates in the white matter of the brain?
Myelinated axons
Which adult structure(s) arises from the diencephalon?
Thalamus, hypothalamus, retina
Which lobe of the cerebral cortex is responsible for generating motor commands?
frontal
What is the name for a bundle of axons within a nerve?
Tract SNC Nerve root SNP
Which cranial nerve does not control functions in the head and neck?
vagus
What type of receptor cell is responsible for transducing pain stimuli?
Nociceptor
Which region of gray matter in the spinal cord contains motor neurons that innervate skeletal muscles?
Ventral horn
Which location on the body has the largest region of somatos sensory cortex representing it, according to the sensory homunculus?
Lips
What type of receptor cell is involved in the sensations of sound and balance?
Mechanoreceptor
Axons from which neuron in the retina make up the optic nerve?
Retinal ganglion cells
Which of these locations in the forebrain is the master control center for homeostasis through the autonomic and endocrine systems?
Hypothlamus
A drug that affects both divisions of the autonomic system is going to bind to, or block, which type of neurotransmitter receptor?
Nicotinic
What gland produces a secretion that causes figh-or- flight responses in effectors?
Adrenal medulla
par craneal I
Nervio olfativo procesa las sensaciones del sentido del olfato
par craneal II
Nervio ocular (II): responsable de procesar las sensaciones visuales.
par craneal III
Nervio oculomotor (III): es responsable del control del movimiento de los ojos por medio de los músculos extra oculares.
par craneal IV
Nervio Troclear (IV): es responsable del movimiento ocular por medio de el musculo oblicuo superior.
par craneal V
Nervio trigémino (V): es responsable de las sensaciones en la cara y también de controlar los movimientos de masticación.
par craneal VI
Nervio abducente (VI): se encarga del movimiento ocular por medio del músculo recto lateral.
par craneal VII
Nervio Facial (VII): es encargado de los músculos involucrados en la expresión facial, además de identificar la sensaciones de sabor y la producción de saliva.