Psl exam - Study guides, Class notes & Summaries

Convulsions a sudden, violent, irregular movement of a limb or of the body, caused by involuntary contraction of muscles Hyponatremia - causes? Hyponatremia is a condition that occurs when the level of sodium in your blood is abnormally low. Sodium is an electrolyte, and it helps regulate the amount of water that's in and around your cells. Red Cell Crenation A process resulting from osmosis in which red blood cells, in a hypertonic solution, undergo shrinkage and acquire a notched or scallop...

Organelles are not listed as one of the levels of organization of life. Can you put forth a logical argument for why they are not part of the hierarchy of life? correct answers Organelles are structures within cells. They develop within cells after cells are made from molecules and therefore do not exist prior to the existence of cells as stand-alone structures. One reductionist is studying the skeletal system and another the cardiovascular system. What emergent properties (i.e., functions t...

The resting membrane potential is mainly determined by: a. The sodium gradient b. The chloride gradient c. The potassium gradient d. The calcium gradient correct answers The potassium gradient The net outward flow of chloride would best be described as a: a. Equilibrium Current b. Inward current c. Outward current d. Positive Current correct answers Inward current What does the Nernst Equation predict for any concentration gradient of a particular ion across a membrane...

Explain any differences, issues, and benefits of using various measurement devices for taking body temperature? Which of our modalities gives a closer measure to the "core" temperature? Why? correct answers Gold standard is the rectal thermometer, which gives an approximate value of 37.6 deg C. We used the digital, mercury, forehead strip, infrared thermometer. Some of the inaccurate ones gave reading more quickly. The oral digital thermometer gives the closest reading of central core tempera...

What do melanocortins do? A. Absorb UV radiation B. Store carbohydrates C. Activate pain receptors D. Suppress appetite correct answers D. Suppress appetite Which hormone released from the digestive tract increases appetite? A. Neuropeptide Y B. CCK C. Ghrelin D. PYY3-36 correct answers A. Ghrelin What cells release the fever-inducing molecule endogenous pyrogen? A. Hypothalamus B. Adipose tissue C. Dermis D. White blood cells correct answers D. White blood cells ...

What is the driving force that determines the passive transport of solutes across a permeable membrane? correct answers The electrochemical gradient When a substance is uncharged, as in the case of glucose, when can equilibrium occur? correct answers Only when the concentration is equal on the two sides of the membrane If neither the chemical nor the electrical term in the electrochemical potential energy difference equation is zero, when can equilibrium occur? correct answers The two t...

structure of the plasma membrane correct answers semi-permeable double layer of phospholipids, hydrophobic center primary cilia correct answers detects fluid motion motile cilia correct answers helps cell move in uterine tubes and the respiratory tract, 9+2 arrangement Flagellum correct answers Sperm cells, helps propel cell with flap, 9+2 arrangement endocytosis correct answers taking in nutrients exocytosis correct answers giving out nutrients Phagocytosis steps (cellul...

Jr201 - Hip Exam Review UPDATED Actual Exam Questions and CORRECT Answers T/F MDM is compatible with all trident 2 cups - CORRECT ANSWER- True We use MDM for: - CORRECT ANSWER- all the above indications Trident 2 tritanium - CORRECT ANSWER- all the above PSL press fit - CORRECT ANSWER- 1.8mm

If a patient becomes dehydrated, the percentage of plasma in a centrifuged sample of his or her blood would likely correct answers Decreases As blood is pumped out of the heart and into the major arteries leaving the heart correct answers pushes against the semilunar valves and opens them. Which heart chambers contain deoxygenated blood? correct answers Right atrium and right ventricle The heart valves___ correct answers permit the passage of blood in one direction. Oxygen-poor b...

What does the enteric nervous system include correct answers the myenteric plexus and the submucusol plexus What occurs during the oropharyngeal stage of swallowing correct answers closure of the glottis and inhibition of respiration Gastrin correct answers a hormone secreted by cells in the antrum of the stomach which cause HCl secretion from parietal cells in the body of the stomach. Also stimulates chief cells to make pepsinogen - effects aren't in the lumen of the stomach, but in t...