Try to answer these 2000+ Anatomy and Physiology MCQs and check your understanding of the Anatomy and Physiology subject. Scroll down and let's begin!
A. Systole, diastole
B. Diastole, systole
C. End-diastolic volume
D. Bradycardia; tachycardia
A. Secretin
B. Hepatic sinusoids
C. Paneth cells
D. Pepsin
A. Spermatids; spermatozoa
B. Primary spermtocytes; spermatids
C. Secondary spermatocytes; primary spermatocytes
D. Spermatogonia; primary spermatocytes
A. Pancreatic lipase
B. Lingual lipase
C. Gastric lipase
D. Bile
A. Goblet cells; mucus; the blood
B. Endocrine glands; hormones; ducts
C. Exocrine glands; hormones; ducts
D. Endocrine glands; hormones; the blood
E. Exocrine glands; mucus; the blood
A. Purine
B. Pyrimidine
C. Nucleotide
D. Base
A. Both release signal molecules into the bloodstream.
B. Nonsteroid hormones act via signal transduction pathways; steroid hormones do not act via signal transduction pathways
C. Acts as a regulatory message or signal between cells
D. Relays directives from the hypothalamus to other glands
A. Is a condition in which the heart valves do not completely close
B. Is a shallow depression in the interventricular septum.is a connection between the pulmonary trunk and the aorta in the fetus
C. Connects the two atria in the fetal heart
A. Fibrous
B. Cartilagenous
C. Synovial
D. Synchondrosis
A. A cluster of cell bodies
B. Another term for a neuron
C. A bundle of axons
D. Another term for nerve fiber
A. True
B. False
A. Hair
B. Hair follicle
C. Tiny muscle that moves a hair
D. Sensory nerve fiber around the base of a hair
A. Is very important; is less important to the body's ability to protect itself
B. Produces antibodies within five to ten days of exposure to antigens; produces antibodies within a day or two of a subsequent exposure to the same antigen
C. Is very rapid in producing antibodies after exposure to antigens; is very slow in producing antibodies after exposure to antigens
D. Occurs only in children; occurs only in adults
A. Suture
B. Symphysis
C. Amphiarthrosis
D. Tendon
A. Cordlike and connects muscles to bones; a broad, fibrous sheet of connective tissue that connects muscles to muscles
B. An actin filaments slide along myosin filaments; ATP
C. A oxygen debt; ruptured blood vessels
D. None of these
A. Agonist
B. Mutation
C. Dendrites
D. Pituitary
A. Subscapularis
B. Four muscles
C. Radial tuberosity
D. Teres major
A. Muscarinic; adrenergic
B. Adrenergic; nicotinic
C. Muscarinic; cholinergic
D. Nicotinic; muscarinic
E. Cholinergic; nicotinic
A. Axon hillock; depolarization
B. Axon hillock; axon
C. Oligodendrocytes; astrocytes
D. Action potential; axon
A. The transport protein moves or has moving gates
B. The transported molecules are not soluble in the lipid membrane
C. The molecules are moved against the concentration gradient (uphill)
D. More than one molecule is transported at a time
A. Cannot make it invalid
B. Can make it go from valid to invalid
C. Can make the other premises true
D. Can make it inductively stronger
A. Ollicle-stimulating hormone and luteinizing hormone
B. Progesterone and estrogen; stimulates development of the endometrium
C. A drop in progesterone and estrogen levels
D. For both males and females, the quality of eggs and sperm decrease somewhat with age.
A. Descending limb of the nephron loop
B. Medullary portion of the collecting duct
C. Glomerulus
D. Proximal convoluted tubule
E. Distal convoluted tubule
A. Depressor anguli oris
B. Ischiocavernosus
C. Intertubercular sulcus
D. External urethral sphincter
A. Vertebrates and tunicates share
B. Nourish their offspring through mammary glands
C. Endothermic metabolism
D. Australopithecus, Homo habilis, Homo erectus
A. Teeth
B. The skin
C. Nails
D. The liver
E. The digestive system
A. Cerebral cortex
B. The fight-or-flight response
C. Reticular formation
D. Forebrain
A. The opening of voltage-gated sodium channels
B. It makes the inside of the neurons more negative
C. Yes, they are functioning as a receptor.
D. It will make the inside of the neurons more negative and he will rapidly lose consciousness.
A. Nerves and blood vessels
B. Reinforcing ligaments
C. Synovial fluid and articular cartilage
D. Articular discs
E. Articular capsule
A. Pancreatic polypeptide; insulin
B. Somatostatin; insulin
C. Glucagon; somatostatin
D. Glucagon; insulin
E. Insulin; glucagon
A. A foreign substance such as a protein or a polysaccharide to which lymphocytes respond; a globular protein that reacts with an antigen to eliminate the antigen
B. Belong to the immunoglobulin E group.
C. Thymosins.
D. Forced out of blood plasma and generally lacking in proteins; absorbed into lymph capillaries
A. A nutrient
B. NADH
C. Lactose
D. LDLs
E. Insulin
A. Depolarizes
B. Somatic (voluntary) and autonomic (involunary)
C. Muscle cells and
D. Neurons
E. Microglial
A. The type of opsin present in the membrane
B. At intermediate lengths.
C. Urea; ammonia; uric acid
D. ADH (antidiuretic hormone)
A. Gray, and composing the gray matter of the brain and spinal cord; white, and composing the white matter of the brain and spinal cord
B. White, and composing the gray matter of the brain and spinal cord; gray, and composing the white matter of the brain and spinal cord
C. Gray, and composing the gray matter of the brain and spinal cord; white, and composing the white matter of the brain and spinal cord
D. White, and composing the gray matter of the brain and spinal cord; red, and composing the white matter of the brain and spinal cord E. none of the above
A. Intracellular fluid
B. Metabolic alkalosis
C. Liver
D. A drop in blood pH
A. 480
B. 180
C. 125
D. 18
E. 1.8
A. Sclera and cornea
B. Ciliary body
C. Scleral venous sinus
D. Anterior chamber
E. The anterior and posterior chambers
A. Superficial dermis to a deep-lying hair follicle
B. Dense Irregular
C. Arrector pili muscles
D. Simple alveolar
A. 5
B. 6
C. 3
D. 4
A. High : high
B. Low : low
C. High : low
D. Low : high
E. Zero : high
A. Have less elastic tissue
B. Have more elastic tissue and must be able to withstand pressure changes
C. Have more elastic tissue
D. Must be able to withstand pressure changes
A. Efferent; afferent
B. Afferent; efferent
C. Toward; away
D. Afferent; away
E. Efferent; away
A. Non-avian dinosaurs
B. Paraphyletic
C. The blastopore formed during gastrulation becomes the anus
D. Notochord, dorsal hollow nerve cord
A. Outer hair cells stiffen the basilar membrane
B. Complete adaptation occurs in about one to five minutes
C. Occipital lobe of the cortex
D. Connected to the levator palpebrae
A. Stranger danger
B. Automatization.
C. BMI
D. Inflammation
A. 2
B. 14
C. 30
D. 55
E. 80
A. Systemic veins
B. Pulmonary arteries
C. Right ventricle
D. Pulmonary veins
A. Bowman's capsule
B. Proximal tubule
C. Afferent arteriole
D. Transport maximum
A. Arteries; capillaries
B. Arterioles, venules
C. Brachial artery; capillaries
D. Arteries closest to the heart; veins
A. 80-90
B. 10-20
C. > 90
D. < 10
E. 50
A. Avascular, sensory
B. Avascular, motor
C. Highly vascularized, sensory
D. Highly vascularized, motor
A. Dorsal
B. Deep
C. Both
D. None of these
A. DNA synthesis
B. Muscle contraction
C. Blood clotting
D. Exocytosis
E. Communication among neurons
A. Only one
B. One or two
C. Two
D. Several
A. Aggression and antisocial behavior in boys
B. Growth of the uterus or the testes
C. Nipple growth, the growth spurt, and menarche
D. Growth of the testes, initial pubic-hair growth, growth of the reproductive organ, and spermarche
A. Each fiber is striated
B. Each fiber is multinucleated
C. Each fiber contains a single nucleus
D. Skeletal muscle fibers are very large
A. Occur in the intestine
B. Produce HCl
C. Are found in the basal regions of the gastric glands
D. Produce mucin
A. In the kidneys
B. Have capillaries
C. Capillaries
D. Pulmonary artery
A. Spaces that reduce the weight of bone; tightly packed matrix that is solid
B. Osteons; trabeculae
C. Trabeculae; osteons
D. Osteocytes; no osteocytes
A. More rapidly acting
B. Briefer in action
C. More localized in action
D. Compared to the endocrine system, the nervous system has all of these characteristics.
A. Four times as many
B. Twice as many
C. The same number of
D. Fewer
A. Metanephros
B. Glomerulus
C. Detrusor
D. Renal hilum
E. Juxtaglomerular
A. Elevated levels of sex hormones
B. Due to pus-forming bacteria
C. Within fibrous membranes
D. Internal layer of spongy bone in flat bones
A. ATP
B. Calcium
C. Magnesium
D. Acetylcholine
E. Acetylcholinesterase
A. Negative feedback inhibition; thromboxanes
B. Adrenal cortex; aldosterone
C. Prostacyclin; thromboxanes
D. Prostacyclin; action of cyclooxygenase
A. Pancreas
B. Small intestines
C. Isotonic - 300 mOsm
D. Somatostatin
A. Accommodation
B. Pupil constriction
C. Refraction
D. Convergence
A. It can be recycled by the embryo to make new protein
B. It requires less energy to transport across the egg shell
C. It has a low solubility in water and is less toxic to the embryo than other forms of waste
D. It is less metabolically expensive to produce compared to other waste products
A. Some calcium enter the cell from the extracellular space and triggers the release of larger amounts of calcium from intracellular stores
B. Blood flows passively through the atria and the open AV valves
C. The AV valves are supported by chordae tendineae so that they do not blow back up into the atria during ventricular contration
D. The heart rate would increase by about 25 beats per minute
A. The cones are activated
B. Rhodopsin accumulates in the rods
C. The sensitivity of the retina decreases
D. The rate of rhodopsin breakdown is accelerated
A. Distal epiphysis
B. Diaphysis
C. Metaphysis
D. Proximal epiphysis
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 increased O2 and decreased CO2
A. Lung cancer
B. How much extra we can take in and force out
C. Decreases
D. Increases
A. An action potential in a muscle cell ultimately results in the release of calcium ions into the cell
B. The phosphate ion is released, and the myosin head moves back to its original position.
C. Bind with troponin, changing its shape so that the myosin-binding sites on actin are exposed.
D. The pumping of calcium ions out of the cytoplasm and back into the sarcoplasmic reticulum
E. Binding to the troponin complex, which then relocates tropomyosin.
A. It is represented by the P wave on the ECG
B. Pressure in the heart is at its peak
C. The atria remain in diastole
D. Blood flows mostly passively through the atria and the open AV valves into the ventricles
A. Genes
B. RNA
C. Chromosome
D. All of these
A. Paracrines
B. Leukotrienes
C. Hydrocortisones
D. Prostaglandins
A. Mitochondria
B. Cilia
C. Microvilli
D. Junctional complexes.
A. Olfactory receptor
B. Sodium-potassium pump
C. Hyperpolarized
D. Threshold voltage
A. Cholelithiasis
B. Small intestine
C. Large intestine
D. Uvula
A. Higher
B. Lower
C. Constant
D. None of these
A. Has an ammonia-like odor
B. Smells fruity (like acetone)
C. Smells slightly aromatic
D. Has a strong, pungent smell
A. Ammonia
B. Nephron
C. Filtration
D. Secretion
A. Protein storage
B. Blood cell formation
C. Fat (energy) storage
D. Movement
E. Mineral storage
A. Fighting infection
B. Thin and moist
C. A heart valve
D. Bound to hemoglobin
A. Secondary active transport
B. Migrating motility complex
C. Increased incidence of infection
D. Disaccharide
E. Stomach
A. Cornea, pupil
B. Pressure, retina
C. Taste; smell
D. Lens; smell
A. No change in blood pressure but a slower heart rate
B. A rise in blood pressure due to change in cardiac output
C. No change in blood pressure but a change in respiration
D. A lowering of blood pressure due to change in cardiac output
A. Helper T cells
B. Mast cells
C. Th helper cells
D. Tc helper cells
A. Stimulate other endocrine glands to secrete hormones
B. Released upon stimulation by other hormones
C. Parafollicular cells of the thyroid gland
D. Lipid hormones manufactured in cell plasma membranes
A. Are usually water soluble
B. Must also bind to plasma membrane receptors
C. Are usually made of amino acids
D. Are usually synthesized from cholesterol
A. Within or on the edges of the spiral arms of the galaxy
B. It describes the expansion rate of the universe, with higher values meaning more rapid expansion.
C. They are regions where gas is ionized by hot, young stars.
D. The distance of a galaxy and the speed at which it is moving away from us.
A. Mechanoreceptors
B. Thermoreceptors
C. Electroreceptors
D. Chemoreceptors
A. Filtrate flow rate is slow
B. PH is low
C. Salt conc. is high
D. = these are all conditions that cause protein to denature
E. All of these
A. Gigantism
B. Pituitary
C. Thymus
D. Thyroxine
A. Increase in PCO2
B. Zygomatic
C. Decrease in blood pH
D. Decrease in pulmonary arteriolar PCO2
A. The impairment of ciliary gland activity
B. The loss of eyelash hairs
C. Friction on the anterior surface of the eye
D. All of the listed responses are correct.
A. Somatic nervous system
B. Sympathetic nervous system
C. Parasympathetic nervous system
D. Spinal cord
A. Closed chest injury
B. Use a contrast bath
C. Before you move the victim
D. How to examine an area