Archives: Quiz

1) which of the following carry oxygen-poor blood? a. pulmonary veins and vena cavae b. aorta and pulmonary veins c. aorta and vena cavae d. venae cavae and pulmonary arteries e. pulmonary veins and pulmonary arteries 2) many upper motor […]

1) where is dystrophin, the protein that is defective in muscular dystrophy, normally found? a. between the outermost myofilaments and the sarcolemma of a muscle fiber b. as a transmembrane protein of the sarcolemma c. in the z discs of […]

1) what provides most of the natural lubrication during female sexual excitement? a. seminiferous tubules b. vaginal mucosa c. vestibular bulbs d. greater vestibular glands e. lesser vestibular glands 2) what is the infant’s only source of nutrition during the […]

1) during exercise, arterioles to the skeletal muscles __________. a. dilate in response to increased muscle metabolites b. constrict in response to increased muscle metabolites c. dilate in response to increased o2 and decreased co2 d. constrict in response to […]

1) in familial hypercholesterolemia, individuals with two abnormal alleles die of heart attacks in childhood, those with only one abnormal allele typically die as young adults, and those with two normal alleles have normal life expectancies. this exemplifies __________. a. […]

1) which of the following is not a role of calcium in the body? a. it participates in muscle contraction. b. it isa significant component of nucleic acids. c. they serve as second messengers. d. it activates exocytosis. e. it […]

1) special lymphatic vessels, called lacteals, absorb dietary __________ that are not absorbed by the blood capillaries. a. water b. glucose c. vitamins d. amino acids e. lipids 2) what does the term “menstrual cycle” specifically refer to? a. the […]

1) the anatomical dead space is greatest in which of the following situations? a. after eating a large meal b. after swerving to narrowly avoid an accident while driving c. after waking up from a long nap d. after watching […]

1) what organelle is most active in causing programmed cell death? a.rough endoplasmic reticulum b.nucleus c.centriole d.lysosome e.mitochondrion 2) the main reason why an individual with type ab, rh-negative blood cannot donate blood to an individual with type a, rh-positive […]

1) lymphatic vessels recover about __________ of the fluid filtered by capillaries. a. 5% b. 15% c. 25% d. 50% e. 85% 2) which one of the following is not in the correct anatomical position? a. arms at sides b. […]

1) groups of muscles are separated by which of the following? a. epimysium b. fascicles c. perimysium d. fascia e. endomysium 2) in a neuron, the opening of sodium gates typically leads to __________. a. repolarization of the plasma membrane […]

1) the pigment responsible for the color of urine is called __________. a. monochrome b. urochrome c. cyanochrome d. multichrome e. pyuria 2) why is 90% of the cerebral cortex referred to as the neocortex? a. it developed recently evolutionarily […]

1) the anterior margin of the ovary is anchored by a peritoneal fold called the __________. a.broad ligament b.ovarian ligament c.suspensory ligament d.mesovarium 2) each hair grows in an oblique epithelial tube called a(an) __________. a. hair follicle b. vellum […]

1) the ______ wraps around the stomach, small intestine, and large intestine. a. pleura b. pericardium c. meninges d. visceral peritoneum e. parietal peritoneum 2) what type of tissue is found in the most superficial layer of skin? a. simple […]

1) which of these has the highest h+ concentration? a. lemon juice, ph = 2.3 b. red wine, ph = 3.2 c. tomato juice, ph = 4.7 d. saliva, ph = 6.6 e. household ammonia, ph = 10.8 2) the […]

1) the manubrium is part of what bone? a. clavicle b. sternum c. scapula d. a rib e. vertebra 2) any abnormal cardiac rhythm is called a(n) __________. a. ectopic focus b. sinus rhythm c. nodal rhythm d. heart block […]

1) the covering of body surfaces and the lining of body cavities is composed of __________ tissue. a. interstitial b. muscle c. adipose d. epithelial e. nervous 2) the brain and spinal cord are protected by the _________. a. pleura […]

1) which of the following is not an example of lymphatic tissue? a. peyer patches b. malt c. lymphatic nodules d. macrophages e. diffuse lymphatic tissue 2) which of the following statements regarding the migrating motor complex is true? a. […]

1) a patient is experiencing a high fever, stiff neck, drowsiness, and intense headaches. a spinal tap showed bacteria and white blood cells in the cerebrospinal fluid (csf). this individual most likely has what condition? a. parkinson disease b. alzheimer […]

1) which of the following is true regarding the blood-testis barrier? a. it prevents antibodies in the blood from getting to the germ cells. b. it prevents heat loss from the testes. c. it prevents blood from getting to the […]

1) which law states that the total atmospheric pressure is a sum of the contributions of the individual gases? a.henry’s b.charles’s c.boyle’s d.dalton’s 2) the skin is a barrier to all of the following except __________. a. metals such as […]

1) which renal structure is responsible for producing hypertonic urine by reabsorbing water while allowing metabolic wastes and nacl to pass through? a. glomerulus b. proximal convoluted tubule c. distal convoluted tubule d. collecting duct e. nephron loop 2) which […]

1) which of the following is not a possible circulatory route from the heart? a. heart arteries capillary bed veins heart b. heart arteries capillary bed vein capillary bed veins heart c. heart arteries capillary bed vein capillary bed arteries […]

1) the right atrioventricular valve (tricuspid)regulates the opening between the _________ and the _________. a. right atrium; left atrium b. right atrium; right ventricle c. right atrium; left ventricle d. left atrium; left ventricle e. left ventricle; right ventricle 2) […]

1) a __________ is a cordlike organ composed of numerous __________. a. nerve fiber; nerves b. nerve fiber; axons c. nerve; axons d. nerve fiber; neurosomas e. nerve; neurosomas 2) which of the following is not a feature that connective […]

1) some people suffer involuntary urination due toincompetence of what muscle? a. external urethral sphincter b. bulbospongiosus c. compressor urethrae d. ischiocavernosus e. levator ani 2) which of the bones below does not belong to the appendicular skeleton? a. clavicle […]

1) which of the following structures is the richest in lipid content? a. gray matter b. white matter c. arachnoid mater d. dura mater e. pia mater 2) in order to regenerate, a peripheral nerve fiber must have which of […]

1) what is the only sense in which signals can reach the cerebral cortex without passing first through the thalamus? a. touch b. smell c. taste d. vision e. equilibrium 2) how is colostrum different than breast milk? a.it has […]

1) natriuretic peptides promote sodium and potassium excretion. 2) albinism is the genetic lack of melanin that results in a milky white coloration of the skin. Answer: true 3) somatic reflexes are responses of skeletal, smooth, and cardiac muscles. Answer: […]

1) hypercapnia and acidosis have positive chronotropic effects. 2) osteogenic cells are bone stem cells that differentiate into osteoblasts and osteoclasts. Answer: false 3) debridement is not necessary to infection control. Answer: false 4) albuminuria is a common sign of […]

1) although two breast cancer genes are known, most cases are nonhereditary. 2) concentric lamellae within an osteon are connected by lacunae. Answer: false 3) the forearm acts as a third-class lever during flexion of the elbow. Answer: true 4) […]

1) testosterone stimulates development of the secondary sex characteristics, spermatogenesis, and libido. 2) acetylcholine (ach) binds to both muscarinic and nicotinic receptors. Answer: true 3) chylomicrons are secreted from the basal surface of the absorptive cells and taken into the […]

1) according to the bohr effect, a low level of oxyhemoglobin enables the blood to transport more co2. 2) a dark band formed by parallel thick filaments that partly overlap the thin filaments is known as an h band. Answer: […]

1) bony joints are the most common type of joints. 2) ventricular pressure increases the fastest during ventricular filling. Answer: false 3) the blood-csf barrier is composed of dense regular connective tissue lining the ventricles. Answer: false 4) scar tissue […]

1) synovial fluid is rich in albumin and hyaluronic acid, which give it a viscous texture similar to egg white. 2) erectile dysfunction prevents ejaculation in most cases. Answer: false 3) in the plasma membrane, glycolipids and glycoproteins face toward […]

1) the kidneys secrete adh in response to dehydration. 2) the absorptive state lasts about fifteen minutes after a meal. Answer: false 3) unsaturated fatty acids have as much hydrogen as they can carry. Answer: false 4) acidosis is a […]

1) the liver stores excess iron in ferritin. 2) interferons are secreted in response to bacterial infections. Answer: false 3) the appendix is typically found in the right lower quadrant. Answer: true 4) vasoreflexes can raise or lower blood pressure […]

1) all cranial nerves lead to structures in the head and neck. 2) oxygen and carbon dioxide bind to different parts of hemoglobin. Answer: true 3) the liver is proximal to the diaphragm. Answer: false 4) prostaglandins are considered paracrines. […]

1) norepinephrine is a monoamine. 2) oligodendrocytes serve the same purpose in the cns that satellite cells do in the pns. Answer: false 3) the ovarian cycle typically lasts about 28 days, with day 1 considered to be the first […]

1) the stretch reflex is the tendency of a muscle to stretch when it is overcontracted. 2) the atlantoaxial joint is the joint between c1 and c2. Answer: true 3) regardless of the cause of stress, the body reacts in […]

1) red bone marrow is the point of origin of all immune cells of the lymphatic system. 2) mesoderm gives rise to muscle, bone, and blood. Answer: true 3) inhibin modulates the secretion of lh. Answer: false 4) the nervous […]

1) cholesterol is essential for the synthesis of steroid hormones. 2) the embryonic stage extends from 16 days through the end of week 8. Answer: true 3) hemostasis is the production of formed elements of blood. Answer: false 4) most […]

1) the middle ear consists of a fluid-filled chamber. 2) peptide hormones are synthesized by cytoplasmic ribosomes as active enzymes. Answer: false 3) most autonomic efferent pathways involve one neuron. Answer: false 4) the mastoid process cannot be palpated on […]

1) the appendicular region consists of the head, neck and trunk. 2) negative feedback is a self-amplifying chain of events that tends to produce rapid change in the body. Answer: false 3) organs are made of tissues. Answer: true 4) […]

1) microvilli and cilia differ in their function, but have the same internal structure. 2) structures in the midbrain control homeostasis and relay sensory signals to specific regions of the cerebral cortex. Answer: false 3) hypothermia may be fatal if […]

1) smooth and cardiac muscles are under involuntary control. 2) trochanters are unique to the femur. Answer: true 3) hair and nails are composed of collagen. Answer: false 4) interleukins are chemical signals by which immune cells communicate with each […]

1) blood flow through a capillary bed is regulated by precapillary sphincters. 2) lung tissue receives nourishment and waste removal from the pulmonary circuit. Answer: false 3) the first haploid stage of spermatogenesis is prophase ii. Answer: true 4) a […]

1) osteoid tissue is similar to bone except for a lack of minerals. 2) when the abdomen is divided into nine regions, the most superior horizontal line is called the midclavicular line. Answer: false 3) arterial flow to the lower […]

1) the main stabilizer of the shoulder isthe biceps brachii muscle. 2) blood plasma osmolarity is higher than intracellular fluid osmolarity. Answer: false 3) a cell starting prophase has 92 molecules of dna in its nucleus. Answer: true 4) the […]

1) each portion of the spinal cord, from which a spinal nerve emerges, is called a ‘segment” of the cord. 2) both glycogenesis and gluconeogenesis are examples of catabolic reactions. Answer: false 3) the medulla oblongata is the most rostral […]