When released by the sending neuron, neurotransmitters travel across the synapse and bind to receptor sites on the receiving neuron, thereby influencing where that neuron will generate a neural impulse. b) What is an agonist?
Bad Fish: Human Anatomy and Physiology Edition 1. Present the “Doctor’s Notes” portion of the case with a description of the following terms or concepts: Diaphoresis: Technical name for sweating. Motor dysfunction: A defect within the motor system causing an inability to produce or control motion. Paresthesias : An abnormal sensation of the skin such as tingling, pricking or numbness Cyanotic : Discoloration of the skin and mucous membrane, indication that oxygen in the blood is diminishing Hypoventilating : Respiratory depression, occurring when ventilation is inadequate to perform necessary gas exchange Bradycardia : Abnormally slow heart rate Gastric lavage : Act of washing out the stomach with sterile water or a saltwater
3. Return to the main Endocrine System homepage and click on the Pituitary Gland. a. The pituitary produces several hormones that regulate various parts including other endocrine glands. This rather large role earns it the “master gland” nickname.
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.
Additionally, the perceived hypovolumic status causes the release of antidiuretic hormone (ADH) from the posterior pituitary. ADH increases water reabsorption in the kidneys, which further contributes to increased volume and increased BP (McCance & Huether, 2010). 2.) What tests indicate glomerular function? Serum creatinine concentration, cystatin C plasma concentration, and BUN levels indicate glomerular function (McCance & Huether, 2010).
False 20. High Levels of cortisol over extended periods of time (due to stress) may cause: . Systematically weakens connective tissue . Shrinks Hippocampus . Accelerates osteoporosis .
QAHS BIOLOGY CORE TOPIC E4 Neurotransmitters and Synapses E4.1 State that some presynaptic neurons excite postsynaptic transmission and others inhibit postsynaptic transmission. Some presynaptic neurons excite postsynaptic transmission and others inhibit postsynaptic transmission. Synapses are junctions between neurons Each neurone has many synapses with other neurons These synapses can be inhibitory or excitatory An action potential in the post synaptic neuron will only occur if the potential difference at the axon hillock rises above the threshold value. An impulse arrives through an excitatory neuron but the rise in potential difference is insufficient to reach the threshold and so
Answer the following questions. 1. What could have caused Myelin’s disease? Well, they may be driving at Multiple Sclerosis, for a bonus point, this is more prevalent at high lattitudes and there is a possible negative correlation with vitamin D levels. Other causative factors include lack of EFAs, whereby the body strips EFAs away from the myelin sheath of peripheral nerves to preserve the levels in the brain itself.
More information about scoring 1. Match the structure with its function. Option Your Answer 1.1 Correct occipital lobe C. vision 1.2 Correct pineal gland B. secretes melatonin; involved in the body clock 1.3 Correct medulla oblongata D. contains vital nuclei for ventilation, blood pressure, and heart activity 1.4 Correct postcentral gyrus F. primary somatic sensory cortex 1.5 Correct parietal lobe E. body sense, perception, and speech 1.6 Correct vagus nerve A. controls organs; main parasympathetic nerve 2. Match the structure with its function. Option Your Answer 2.1 Correct thalamus B. processing information going to cerebrum 2.2 Correct cerebellum D. motor coordination, balance 2.3 Correct corticospinal tract C. carries direct orders from cerebrum to ventral horn motor
The limbic system regulates body temperature, blood pressure, blood sugar level, and other housekeeping activites. The limbic system contains the Hippocampus, the amygdala and the hypothalamus. Some researchers of memory focus their studies on the limbic system. Memory function is partly organized by the hippocampus which collects and relays memory information to other layers of the brain. Memory-impairing conditions like Alzheimer’s