Brain Structures and Functions Worksheet PSY/340 Version 3 1 University of Phoenix Material Brain Structures and Functions Worksheet Provide a brief description for each of the following functions: 1. Basal ganglia Controls cognition, movement coordination, and voluntary movement, it is located deep within the cerebral hemispheres in the telencephalon region of the brain. 2. Corpus collosum Is a thick band of nerve fibers that divides the cerebrum into the left and right hempispheres. 3.
PNS – Peripheral Nervous System: 3. A branching system of nerves that transmits messages from the central nervous system and back 4. Receptors-specialised cells which detect stimulus 5. Sensory nerves-carry messages from receptor to CNS 6. Motor nerves-Carry messages from CNS to the effector 7.
4. Occipital lobe Located in the back of the head, and manages vision. 5. Frontal lobe Located in the front of the head. Manages voluntary movement, thinking, and feeling.
A. Midbrain B. Basal ganglia C. Subthalamic D. Thalamus 9. Changes in personality and judgment are often associated with a _____lesion. A. Frontal lobe B. Parietal lobe C. Broca's area D. Wernicke's area 10. Changes in motor aphasia are often associated with a _______ lesion.
Independent Variable. muscle movement 3. Controlled Variables. total number of motor units present in muscle; subject’s physical condition Recruitment during isometric contractions 1. Dependent Variable.
It is located in the left and right sides of the cerebrum. It is believed to be responsible for hearing, senses, language, learning, memory storage, auditory perception, speech, and complex visual perceptions. It is one of the four subdivisions of the cerebral cortex. Located in the rear of the cerebrum, it s one of the four major areas of the upper brain. It is primary responsible for vision and reading.
If the cell body dies, the neuron dies. * Axon - This long, cable-like projection of the cell carries the electrochemical message (nerve impulse or action potential) along the length of the cell. * Depending upon the type of neuron, axons can be covered with a thin layer of myelin, like an insulated electrical wire. Myelin is made of fat, and it helps to speed transmission of a nerve impulse down a long axon. Myelinated neurons are typically found in the peripheral nerves (sensory and motor neurons), while non-myelinated neurons are found in the brain and spinal cord.
The tunica vasculosa of the eye includes all of the following except: (a) the cornea; (b) the iris; (c) the choroid; (d) chromatophores; (e) the ciliary body. 11. Outer hair cells of the cochlea have their microvilli embedded in: (a) the vestibular membrane; (b) the tectorial membrane; (c) the basilar membrane; (d) the cupula; (e) the vitreous body. 12. ___ cells of the retina are inhibited by glutamate in the dark, but excited in the light when glutamate secretion stops.
Nerve coverings—fibrous connective tissue * Endoneurium—surrounds individual fibers within a nerve * Perineurium—surrounds a group (fascicle) of nerve fibers * Epineurium—surrounds the entire nervea 4) Define the following parts of the brain & spinal cord. Your definition should include where the specific part is found, structure, function and any other information you feel is pertinent. 1) Brainstem- Consists of three parts of brain; named in ascending order: the medulla oblongata, pons, and midbrain- Structure—white matter with bits of gray matter scattered through it-Function—gray matter in the brainstem functions as reflex centers Heartbeat, respirations, and blood vessel diameter -Sensory tracts in the brainstem conduct impulses to the higher parts of the brain- Motor tracts conduct from the higher parts of the brain to the spinal cord 2) Diencephalon- Hypothalamus, a) Posterior pituitary gland, pituitary stalk, & gray matter b) Major center for controlling the ANS c) Functions of most internal