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Bio 102 exam 3 study guide

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The collarbone is the a. collar. b. patella. c. scapula. d. clavicle. e. phalanx.
d. clavicle.
During muscle contractions a. the myofibrils shorten. b. the actin and myosin filaments slide over each other. c. the actin filaments move toward the middle of the sacromere during contraction and away on relaxation. d. the muscle thickens. e. all o
e. all of these
Each muscle fiber is an individual a. muscle. b. muscle cell. c. myofibril. d. sarcomere. e. all of these
b. muscle cell.
The primary mineral stored in bones is a. sodium. b. iron. c. magnesium. d. calcium. e. sulfur.
d. calcium.
In spongy bone tissue, the spaces are filled with a. air. b. blood. c. cartilage. d. red marrow. e. yellow marrow.
d. red marrow.
The kneecap is the a. cap. b. patella. c. scapula. d. clavicle. e. phalanx.
b. patella.
Four of the five answers listed below are functions of the skeleton. Select the exception. a. controls body temperature b. produces blood cells c. protection of internal organs d. storage for calcium and phosphorus e. muscle attachment
a. controls body temperature
The body’s strongest weight-bearing bone is the a. femur. b. humerus. c. radius. d. tibia. e. ulna.
a. femur.
Bones in fingers or toes are called a. piggies. b. patella. c. scapula. d. clavicle. e. phalanges.
e. phalanges.
The tissue that lines internal surfaces of the body is a. epithelial. b. loose connective. c. muscle. d. dense regular. e. adipose.
a. epithelial.
Human skin is primarily what type of epithelium? a. simple cuboidal b. simple columnar c. simple squamous d. stratified cuboidal e. stratified squamous
e. stratified squamous
Which of the following is not included in connective tissues? a. bone b. skeletal muscle c. cartilage d. adipose e. blood
b. skeletal muscle
Fibroblast cells are characteristic of what tissue type? a. connective b. epithelial c. muscle d. nervous e. all of these
a. connective
Dense connective tissues that connect muscle to bone are called a. muscles. b. cartilage. c. ligaments. d. tendons. e. all of these
d. tendons.
Adipose tissue cells are filled with a. minerals. b. fat. c. cartilage. d. fibers. e. muscles.
b. fat
Which muscle type is considered voluntary? a. cardiac b. skeletal c. smooth d. both cardiac and smooth e. both skeletal and smooth
b. skeletal
Which of the following cell types are considered part of nervous tissue? a. neuroglial b. neurons c. neuropathic d. neurons and neuroglial e. neurons and neuropathic
d. neurons and neuroglial
Which of the following functions can the skin perform? a. help conserve water b. help regulate body temperature c. sense the environment d. defend the body against pathogens e. all of these
e. all of these
Four of the five answers listed below possess the same type of skeleton. Select the exception. a. butterfly b. fly c. earthworm d. crab e. grasshopper
c. earthworm
Four of the five answers listed below are part of the same area of the skeleton. Select the exception. a. humerus b. fibula c. radius d. clavicle e. scapula
b. fibula
The process that involves two different filaments causing muscular contraction is called the ____ model. a. sliding filament b. shortening myosin c. lengthening action d. crumbling fiber e. contracting fibril
a. sliding filament
All of the following statements are true regarding muscular contraction. Select the exception. a. Myosin heads attach to actin filaments. b. Calcium ions make it possible for myosin to bond with actin. c. Rigor mortis occurs when there is no ATP in the
d. Actin is the thick protein filaments and myosin are the thin protein filaments.
Which of the following animal possesses a 3-chambered heart? a. human b. frog c. mammal d. bird e. fish
b. frog
Most of the oxygen in the blood is transported by a. plasma. b. serum. c. platelets. d. hemoglobin. e. white blood cells.
d. hemoglobin.
Megakaryocytes fragment to produce ________ and are used in blood clotting. a. red blood cells b. white blood cells c. platelets d. plasma e. blood
c. platelets
Type A blood will NOT be rejected by a recipient with a. type B blood. b. type AB blood. c. type O blood. d. both types AB and O blood. e. both types B and AB blood.
b. type AB blood.
In its travel through the human body, blood usually continues on from capillaries to enter a. arterioles. b. venules. c. arteries. d. veins. e. other capillaries.
b. venules.
Blood in arteries a. always travels away from the heart. b. is always oxygen-rich. c. always travels toward the heart. d. travels from the lungs. e. is always oxygen-rich and always travels away from the heart.
a. always travels away from the heart.
The node that receives the signal for the heart to contract is ______, also known as the pacemaker of the heart. a. sinoatrial b. semilunar c. atrioventricular d. inferior vena cava e. superior vena cava
a. sinoatrial
Which of the following are risk factors for cardiovascular disease? a. smoking b. high cholesterol c. physical inactivity d. obesity e. all of these
e. all of these
For the surface of an animal to function in the integumentary (cutaneous) exchange of gases it must a. be thin and soft. b. have a high number of blood vessels. c. have mucus or moist covering. d. have a high surface to volume ratio. e. all of these
e. all of these
Adult insects exchange respiratory gases by a branching a. spiracle system. b. tracheal system. c. lungs. d. gills. e. body surface.
b. tracheal system.
What is the proper sequence in the flow of air in mammals? a. nasal cavities, larynx, pharynx, bronchi, trachea b. nasal cavities, pharynx, bronchi, larynx, trachea c. nasal cavities, pharynx, larynx, trachea, bronchi d. nasal cavities, larynx, pharyn
c. nasal cavities, pharynx, larynx, trachea, bronchi
Food and drink are prevented from entering the respiratory passageways during swallowing by means of the a. glottis. b. pharynx. c. epiglottis. d. larynx. e. trachea.
c. epiglottis.
The human vocal cords are located in the a. glottis. b. pharynx. c. trachea. d. larynx. e. bronchus.
d. larynx.
Actual exchange of gases in the lungs occurs in the a. bronchi. b. alveoli. c. bronchioles. d. tracheas. e. glottis.
b. alveoli.
During inhalation, a. the pressure in the thoracic cavity is greater than the atmospheric pressure. b. the pressure in the thoracic cavity is less than the atmospheric pressure. c. the diaphragm moves upward and becomes more curved. d. the chest cavit
b. the pressure in the thoracic cavity is less than the atmospheric pressure.
Most of the carbon dioxide produced by the body is transported to the lungs a. in a gaseous form. b. dissolved in blood plasma. c. on hemoglobin molecules. d. as bicarbonate ions. e. on platelets.
d. as bicarbonate ions.
Smoking has been shown to cause a. bronchitis. b. emphysema. c. lung cancer. d. coronary disease. e. All of these
e. All of these
Which of the following organs is NOT involved in chemical digestion because it does not produce any digestive enzymes? a. stomach b. liver c. large intestine d. pancreas e. salivary glands
c. large intestine
Saliva contains a. amylase. b. bicarbonate. c. mucins. d. water. e. all of these
e. all of these
Chyme is formed in the a. mouth. b. esophagus. c. stomach. d. small intestine. e. large intestine.
c. stomach.
The acid released in the stomach is a. carbonic acid. b. hydrochloric acid. c. nitric acid. d. sulfuric acid. e. phosphoric acid.
b. hydrochloric acid.
Which of the following is NOT a secretion of the stomach? a. pepsinogen b. mucus c. gastrin d. hydrochloric acid e. lipase
e. lipase
Ducts from the pancreas and liver enter the a. stomach. b. colon. c. duodenum. d. jejunum. e. ileum.
c. duodenum.
Of the following the greatest amount of nutrient absorption takes place in the a. stomach. b. small intestine. c. large intestine. d. pancreas. e. esophagus.
b. small intestine.
The primary function of the large intestine is a. storage of feces. b. absorption of nutrients. c. digestion of proteins. d. digestion of fats. e. absorption of water.
e. absorption of water.

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