Card Set Information
What is the function of the Longitudinal Fissure?
Separate the left and right hemispheres from eachother.
What does the Frontal Lobe do?
Voluntary motor functions, motivation, foresight, planning, memory, mood, emotion, social judgement, aggression.
What does the Parietal Lobe do?
Recieve and interpret signals for the general senses, taste and visual processing
What does the Occipital Lobe do?
Principal visual center of the brain
What does the Temporal Lobe do?
Hearing, smell, learning, memory and some aspects of vision and emotion
Where is the Lateral Sulcus found?
On the temporal lobe
Where is the Central Sulcus located?
Between the Parietal lobe and the Frontal lobe (between the postcentral gyrus and the precentral gyrus)
What is the left hemisphere of the brain associated with?
Language and Reasoning
What is the right hemisphere of the brain associated with?
Space and pattern preceptions, art, music and imagination
What are gyri?
The bumps found on the brain
What are sulci?
The grooves in the brain
Where is the primary motor cortex?
It is in the precentral gyrus
Where is the primary somatosensory cortex?
In the postcentral gyrus
Where is the primary visual cortex generally located?
The occipital lobe
Where is the primary auditory cortex generally located?
The temporal lobe
What does the septum pellucidum divide?
The two lateral ventricles
What does the interventricular foramina divide?
The two lateral ventricles and the 3rd ventricle
What does the copora quadrigemina divide?
The third and fourth ventricles
What does the mesencephalic aqueduct connect?
The third and fourth ventricles
What does the corpus callosum do?
Facilitate communication between the two hemispheres
What is the general pathway of the reflex arc?
Receptor -> Sensory Neuron -> Central Nervous System -> Motor Neuron -> Effector
What occurs in a synapse?
Neurotransmitters are released into the synaptic cleft to be recieved on the other side of the cleft to send the signal to the next neuron
What is the difference between stretch reflexes and withdrawl reflexes?
Withdrawl reflexes involve interneurons besides sensory and motor neurons
What is the patellar reflex? What happens when it is stimulated?
Results in extension of the knee joint
What is the calcaneal tendon reflex and what happens when it is stimulated?
Results in plantar flexion of the foot. Tests the tibial nerve
What is the blinking reflex and what happens when it is stimulated?
Flexes (closes) the eyelids. Keeps foregin particles out.
What is the Plantar response/ Babinski reflexand what happens when it is stimulated?
Results in dorsiflexion of big toes. Not usually present in adults but seen in newborns.
What are the biceps and triceps reflexes and what happens when they are stimulated?
Results in flexion and extension of the arm at the elbow joint.
What are mechanoreceptors?
Respond to light touch (tactile corpuscles) and deep pressure (Lamellated corpuscles)
What are thermoreceptors
They are associated with temperature changes
What are nocireceptors?
Neurons that respond to pain
What are rods? What do they allow us to do?
Allow us to see black and white and are more sensitive to light
What are cones? What do they allow us to do?
Allows us to see color and work best in bright light.
What are the 3 parts of the outer ear?
External acoustic meatus
What is the Auricle?
The fleshy part of your ear on the outside
What is the external acoustic meatus?
The hole that sound goes through to get to your ear drum.
What is the tympanic membrane?
The ear drum
What are the 3 bones of the middle ear?
Malleus = hammer
Incus = anvil
Stapes = stirrup
What are the parts of the inner ear?
What is the structural organization of the Nervous system?
Central Nervous System
Peripheral Nervous System
What is the functional organization of the Nervous System?
Sensory Nervous System
Motor Nervous System
What does the sensory nervous system do?
Transmit signals from the PNS to the CNS (input) (afferent)
What are the two divisions of the Sensory Nervous System?
Visceral Sensory Division
Somatic Sensory Division
What does the Motor Nervous system do?
Send signals from CNS to muscles and glands (output) (efferent)
What are the two divisons of the Motor Nervous System?
Somatic Motor System (SNS)
What is a ganglia?
Swelling in the nerve body where cell bodies of neurons are concentrated
What is a nerve?
A bundle of axons and connective tissues.
What are axons on a neuron
The long tail (output)
What are dendrites on a neuron
The parts closer to the body (input)