Lab Questions Flashcards
The semilunar valves of the mammalian heart
Prevents back flow of blood in the aorta and pulmonary arteries
The set of blood vessels that allows for gas exchange with the slowest velocity of blood
Veins
In mammals most gas exchange between the atmosphere and the pulmonary occurs in the
Alveoli
Tissues are composed of cells and tissues functioning together makeup
Organs
The epiglottis of a human covers the glottis when he/she is
Swallowing
Stratified cuboidal epithelium is composed of
Several layers of boxlike cells
Impairment of a mammals breathing cycle is most likely following neural damage in
The medulla oblong and the pons
Certain nutrients are considered “essential” in the diets of some animals because
These animals are not able to make these nutrients
The fat soluble in vitamins include
Vitamin A
Ingested dietary substance must cross cell membranes to be used by the body, a process known as
Absorption
After ingestion by humans the first category of macromolecules to be chemically digested by enzymes in the mouth
Carbohydrates
Digestive secretions with a pH of 2 are characteristic of the
Stomach
Pepsin is a digestive enzyme that
Manufactured by the pancreas
The bile salts
Emutsify fats in the duodenum
Materials are returned to the blood from the filtrate by which of the following process
Reabsorption
The filtrate in the proximal convoluted tubule of the human does not normally include
Plasma proteins
After blood flow is artificially reduced at one kidney, you would expect that kidney to secrete more of the hormone known as
Cortisol
Increased ADH secretion is likely after
Sweating included dehydration increases plasma osmolartity
In animals, nitrogenous wastes are produced mostly from the catabolism of
Phospholipids and glycolipids
What is an ulcer and how it develop
Ulcer: open sore either internal or external
Develop: break in skin or mucus membrane that failed to heal
Explain the flow of blood through the heart
Vena cava ~ right atrium ~ av node~ right ventricle ~ pulmonary valve ~. pulmonary artery ~ pulmonary vein ~ left atrium ~ left ventricle ~ aorta
Air bubble to the alveoli
Nasal cavity ~ pharynx ~ larynx ~ trachea ~ bronchi ~ bronchioles ~ alveoli
Which pairs of mammalian blood vessels has blood that is least similar in its gas content
Pulmonary and jugular veins
How each wave of the EKG correlates with electrical activity of the heart
It would show a normal heart rhythm recording. The signals goes to the heart ventricles.
Explain how you would conduct a urinalysis and list 3 substances you would test for
Urine ~ dip strip ~ strip change color ~ results of color ~ trst for abnormalities
Blood, proteins, sediments
