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A&P lecture exam 1
| Question | Answer |
|---|---|
| Consider a mixture of blood contains sodium chloride, protein & cells or formed elements. The sodium chloride is in a____, the protein is in a ___, & the cells are in a __. | solution; colloid; suspension |
| Which of the following statements is false re: inclusions? a.are not enclosed by a membrane. b.have no functions that are necessary for survival. c.can participate in ATP production in the cell. d.could be viruses or bacteria inside the cell. | c. Inclusions can participate in ATP production in the cell. |
| A receptor protein in the plasma membrane will not bind to just any chemical in the extracellular fluid, but only to certain ones. That is to say, the receptor exhibits a.selectivity. b.specificity. c.efficacy. d.saturation. e.fidelity. | b. specifity |
| Transmembrane proteins that make up enzymes in the plasma membrane are made up of hydrophilic and hydrophobic regions. Most amino acids embedded in the membrane are ___, while most amino acids facing the extracellular fluid are _____. (hydroph'c) ( | d. hydrophobic; hydrophilic |
| Gates respond to all these stimuli except a.chemical messengers. b.ligands. c.changes in electrical potential (voltage) across the plasma membrane. d.physical deformation of the plasma membrane. e.water in the extracellular fluid. | e.water in the extracellular fluid. |
| The sod-pot pump transports both sodium and potassium ____ their concentration gradients in a process called ___. a. up; active transport b. up; facilitated transport c. up; cotransport d. down; active transport e. down; countertransport | a. up; active transport |
| Facilitated diffusion and active transport have in common that both c. are processes involving the use of energy provided by ATP. d. are processes ATP independent. e. are cases of carrier-mediated transport. | e. are cases of carrier-mediated transport. |
| From which primary germ layer is the epidermis of the skin derived? a. Endoderm b. Mesoderm c. Ectoderm d. Mesenchyme e. The epidermis is derived from all three primary germ layers. | c. ectoderm |
| __ epithelium is the most common in the body, whereas __epithelium is rare. a. Simple columnar; stratified columnar b. Stratified squamous; stratified columnar c. Pseudostratified; stratified squamous | Stratified squamous; stratified columnar |
| ___ epithelium is assoc.w/ rapid transport of substances thru a membrane, ___ epithelium is associated with resistance to abrasion. a.Simple columnar; transitional b.Simple squamous; stratified squamous c.Simple cuboidal; pseudostratified | b.Simple squamous; stratified squamous |
| __________________ exhibits a lot of apparently empty space, and is found in many serous membranes. a. Blood b. Areolar tissue c. Osseous tissue d. Dense irregular connective tissue e. Adipose tissue | b. areolar tissue |
| Secretions from __________ glands contribute to the acid mantle that inhibits bacterial growth on the skin. a. mammary b. ceruminous c. sebaceous d. apocrine sweat e. merocrine sweat | e. merocrine sweat |
| In an adult, a compound fracture of the ___________ could lead to a "fat" embolism entering the blood stream. a. sternum b. skull c. ribs d. tibia | d. tibia |
| Osteogenesis Imperfecta is due to the deficiency of ________________ in the matrix, which makes the bones extremely brittle. phosphorus collagen calcium sodium potassium | collagen |
| During the healing of a bone fracture, a hard callus is formed by osteoclasts. osteoblasts. osteocytes. fibroblasts. | osteopblasts |
| Which of these is an inorganic component of the bone matrix? proteoglycans glycoproteins collagen hydroxyapatite glycosaminoglycans | hydroxyapatite |
| _________ have a ruffled border with many deep infoldings of the plasma membrane, whereas ____________ have long, thin, fingerlike cytoplasmic processes. | osteoclasts/osteocytes |
| Which one of the following bone cells would have the greatest number of lysosomes? osteoblasts osteoclasts osteocytes osteogenic cells stem cells | osteoclasts |
| The _____________ is a marginal zone of the epiphyseal plate where, in children and adolescents, bone can replace the hyaline cartilage. metaphysis primary ossification center secondary ossification center osteoid tissue epiphyseal line | metaphysis |
| These are bones associated with the skull but not considered part of it except the incus. the malleus. the hyoid. the stapes. the vomer. | the vomer |
| You cannot palpate the ________________ on a living person. lateral malleolus tibial tuberosity medial surface of the fibula anterior crest of the tibia calcaneus | medial surface of the fibula |
| A movement of a joint beyond the zero position. | hyperextension |
| A movement in the frontal plane back toward the midline | adduction |
| A movement of a body part in the frontal plane away from the midline of the body. | abduction |
| A movement that straightens a joint and generally returns a body part to the zero position. | extension |
| A movement that decreases a joint angle | flexion |
| A movement in which a bone spins on its longitudinal axis | rotation |
| A movement in which one end of an appendage remains fairly stationary while the other end makes a circular motion. | circumduction |
| A movement that tips the soles medially | inversion |
| A movement that tips the soles laterally. | eversion |
| Multiaxial joints | ball & socket |
| Monaxial joints, moving freely in one plane with very little movement in any other | hinge |
| Biaxial joints that exhibit an oval convex surface on one bone that fits into a complementary shaped depression on the other. | Condylar (ellipsoid) |
| Biaxial joints where both bones are concave in one direction and convex in the other. | saddle |
| Joints in which adjacent bones slide over each other and have relatively limited movement | Plane (gliding) |
| Monaxial joints in which a bone spins on its longitudinal axis. | pivot |
| To raise your hand and place it on the shoulder of a person standing in front of you involves _______________ of the shoulder. abduction adduction extension flexion elevation | flexion |
Created by:
tklimarchuk
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