With motor neurons? - afferent = sensory information move toward the brain and spinal cord -efferent= information is taken away from the brain and spinal Cord 3 what is function of interneurons? - contact nearby neurons in brain, spinal cord or ganglion 4 what are subdivisions of the PNS? - the subdivisions of the PNS are somatic nervous system, autonomic nervous system and enteric nervous
In other words, neurotransmitters are the messages that nerve cells send out, and they cross the gaps between each of the cells. When released by the sending neuron, neurotransmitters travel across the synapse and neuron. Therefore, they influence whether that neuron will generate a neural impulse or not. B) An agonist mimics neurotransmitters functions by binding to receptor sites and stimulating the sending neuron. C) An antagonist does the opposite of agonist.
What are the components of the ANS (long) neural reflexes? The components of the ANS (long) neural reflexes include a CNS control center in the spinal cord and the brain. b. What is the stimulus for ANS regulation? Distention for many involuntary digestive movements.
Four Ventricles of the brain are connected cavities within the brain, where cerebrospinal fluid is produced. Hypothalamus is a region of the brain in partnership with the pituitary gland that controls the hormonal processes of the body as well as temperature, mood, hunger, and thirst. Optic Chiasm is located beneath the hypothalamus and is where the optic nerve crosses over to the opposite side of the brain. Pineal Gland controls the response to light and dark. The exact role of the pineal gland is not certain.
Week 5 Forum Student’s Name Institutional Affiliation Date The amygdala and hippocampus are the main parts of the brain whose responsibility is the regulation of memory. The amygdala is divided into two, the right and left hemispheres. The right hemisphere is responsible for negative emotions like fear and sadness while the left hemisphere induces both the pleasant and unpleasant emotions when stimulated. These hemispheres have independent memory systems but they work together to encode, store and interpret information. The hippocampus on the other side is responsible for the production of corticosteroids (chemicals that produce physiological responses to stimuli).
Correct The structure that separates the left and right cerebral hemispheres is the: Your Answer: Longitudinal fissure. 2. Correct The lobe of the brain involved with the coordination of autonomic functions is the: Your Answer: Insula. 3. Correct The structure of the brain that regulates the endocrine system is the: Your Answer: Hypothalamus.
Schwann cells – (PNS myelin) Myelinating Schwann cells wrap around axons of motor and sensory neurons to form the myelin sheath. the conduction of nervous impulses along axons, nerve development and regeneration, trophic support for neurons, production of the nerve extracellular matrix, modulation of neuromuscular synaptic activity, and presentation of antigens to T-lymphocytes. |. Oligodendrocytes - (CNS myelin) their main function is the insulation of axons in the CNS. * Satellite oligodendrocytes are functionally distinct from most oligodendrocytes.
4. A motor neuron conducts a nerve impulse along an efferent pathway from the integration center to an effector. 5. An effector responds to the efferent impulses by contracting (if the effector is a muscle fiber) or secreting a product (if the effector is a gland). Reflexes can be categorized as either autonomic or somatic.
Assignment 3:Neuroanatomy Project Physiological Psychology | PSY350 A03 Name: Instructor: Date: The CNS or central nervous system is the foundation of our existence. It controls many interact details that make us unique. Such as our personalities, senses, movements, as well as other functions like heart beat, breathing, and blood pressure. The CNS is encased in bone just as the brain is encased in skull and the spinal cord is encased in the vertebral column. The vertebral column is a structure of bone that is located in the back that encases the spinal cord from top to bottom in order to protect it from injury.
• Sensory organs function as receptors and receive the stimuli, then it sends nerve impulses to the related effectors. 3. How does the brain use the senses to search/find stimuli in the environment? • Stimuli from the environment are transformed into neural signals which are then interpreted