BLG EXAM

this type of cell junction helps prevent molecules from passing through the space between adjacent cells a) desmosomes b) gap junctions c) tight junctionsc) tight junctionsaction potentials a) propagate from neuron dendrites to axon terminals b) are initiated in the sarcolemma and travel to the axon terminal of neurons c) can propagate from axon terminals to dendrites d) all the above week 12c) can propagate from axon terminals to dendritesduring this stage of the cell cycle, copied chromosomes are alinged in the middle of the cell at the equator a) early prohase b) telophase c) late prophase d) metaphase e) anaphased) metaphaseacetylcholine (ACh) is the neurotransmitter that is secreted by a) the somatic nervous system b) the sympathetic nervous system c) the parasympathetic nervous system d) all the above e) none of the above since ACh activates receptors on the sarcoleema week 9c) the parasympathetic nervous systemthe integration center of a reflex arc a) can be monosynaptic meaning there are many synapses in the grey matter b) allows the reflex action to bypass the brain c) is activated by contraction of the effector muscle which sends an impulse to the sensory neuron d) all of the above week 9b) allows the reflex action to bypass the brainthe following hormone can increase glucose blood level a) anti-diuretic hormone b) cortisol c) insulin d) aldosterone week 12b) cortisolthe smallest contractile unit of muscle fiber is the a) sarcomere b) sarcolemma c) myofibril d) titin filaments week 9a) sarcomereoxytocin ________ a) release is an example of positive feedback control mechanism b) is an anterior pituitary secretion c) exerts its most important effects during menstruation d) all of the above week 12a) release is an example of positive feedback control mechanismthe nerve that helps you move your head from side to side is the a) vagus nerve (x) b) accessory nerve (xi) c) hypoglossal nerve (xii) week 9b) accessory nerve (xi)When a toddler is learning to pick up small objects like a marble she would performing the following movement a) elevation b) protraction c) supination d) opposition week 8d) oppositionthe person below was in a car accident and suffered whiplash. the sudden movement depicted in this picture is a) flexion b) hyperflexion c) hyperextension d) rotation question 60 week 8b) hyperflexionsomatic sensory fibers a) activate an efferent pathway b) sends signals from the skin to the CNS c) conducts impulses from the CNS to the skin d) send impulses from organs to the CNS week 9b) sends signals from the skin to the CNSantidiuretic hormone (ADH) a) increases urine production b) promotes dehydration c) is produced by the anterior pituitary d) secretion is inhibited by alcohol week 12d) secretion is inhibited by alcoholduring a muscle contraction, calcium a) binds tropomyosin displacing it which in turn exposes actin to myosin b) is required to continue to propagate the action potential along the sarcolemma c) is degraded by acetylcholinesterase which in turn stops the contraction d) is released from the endoplasmic reticulum of the muscle fiber week 9b) is required to continue to propagate the action potential along the sarcolemmain the ascending tract like the spino-thalamic tract a) an interneuron synapses with a motor neuron to create a response b) information is sent to the primary motor cortex c) activation of receptors activates the somatosensory cortex d) activation of a pain receptor on your left food activates your left hemisphere week 10c) activation of receptors activates the somatosensory cortexskeletal muscle fibers a) are activated by neurotransmitters that are released in a diffuse junction b) are striated because of the regular arrangement of the sarcomeres c) are electrically connected via gap junctions to allow the whole muscle to contract d) are under involuntary control week 9a) are activated by neurotransmitters that are released in a diffuse junctionwhich of the following cells and their fxn are correctly matched? a) keratinocytes- provides sense of touch and pressure b) melanocytes- protects cells in the stratum corneum from damaging effects of sun rays c) dendritic cells- activate the immune system d) tactile cells - protectionc) dendritic cells- activate the immune systemwhich of the following statements is true a) 7 pairs of cervical nerves exit from vertebra C1 to C7 b) the lumbar section provides 5 pairs of lumbar nerves c) there are 4 pairs of sacral nerves that leave the spine d) the thoracic area provides 12 pairs of thoracic nerves week 9d) the thoracic area provides 12 pairs of thoracic nervesthe humerus a) articulates distally with the scapula b) is the longest lower limb c) articulates with the olecranon to prevent hyperextension week 5+6c) articulates with the olecranon to prevent hyperextensionbitter taste receptors are stimulated by a) hydrogen ions b) alkaloids c) acids d) metal ions week 10b) alkaloidsa car accident victim now reports difficult tasting with the tip of her tongue. which cranial nerve was likely damaged in that injury a) glossopharyngeal (IX) b) Facial (VII) c) hypoglossal (XII) d) trigeminal (V) week 10a) glossopharyngeal (IX)this organelle packages the proteins and lipids for domestic use or export a) cytoskeleton b) lysosomes c) smooth endoplasmic reticulum d) ribosomes e) Golgi apparatuse) Golgi apparatusThe stomach is _________ to the spine a) lateral b) proximal c) anterior d) distal e) medialc) anteriordamage to the cerebellum would likely cause a) constant thirst b) disruptions to your wake sleep cycles c) problems regulating your body temp d) difficulty standing on one foot week 9d) difficulty standing on one footpink eye a) affect your lacrimal gland b) can be purulent (make pus) because the excretory ducts of the lacrimal glands are blocked c) is an inflammation of the lacrimal caruncle d) will usually resolve on it on in about 5 days week 11b) can be purulent (make pus) because the excretory ducts of the lacrimal glands are blockedthis is the type of fracture that occurs when a bone is crushed: a) open b) comminuted c) epiphyseal d) compression week 5+6d) compressionthe hypothalamic-hypophyseal tract ______ a) connects the hypothalamus to the anterior pituitary gland b) connects the hypothalamus to the posterior pituitary c) is the site of TSH synthesis d) a and b e) a, b and c week 12d) a and bwhich of the following structures is not part of the external ear a) auricle b) external acoustic meatus c) tympanic membrane d) helixc) tympanic membranethe fibrous layer of a synovial joint a) is part of the synovial membrane b) makes components of the synovial fluid c) is the external connective tissue of the articular capsule d) is an intracapsular ligament week 8c) is the external connective tissue of the articular capsulesecreting too little thyroid hormone a) causes growth retardation in children b) can lead to weight loss c) can make you have heart palpitation d) causes children to grow quickly at first but their long bones ossify quickly as well week 12d) causes children to grow quickly at first but their long bones ossify quickly as wellbursae are a) found outside of the joint capsule b) can lead to tendonitis if inflamed c) are broken down in rheumatoid arthritis when bone ends meet d) are bags of fat that act as. a lubricating "ball bearing" structure week 8a) found outside of the joint capsulewhat are the three main components of connective tissue? a) ground substance, fibers and cells b) alveoli, fibrous capsule and secretory cells c) collagen, elastin and reticular fibers d) fibroblasts, chondroblasts and osteoblastc) collagen, elastin and reticular fibershow many phosphates would ADO have attached to it a) two b) three c) one d) nonea) twoglaucoma a) can be treated if a medication is used to block the drainage b) occurs due to lack of drainage of the viterous humor c) can be resloved with surgery to drain the viterous humor d) has few early signs but can lead to spotty vision week 11d) has few early signs but can lead to spotty visionposterior pituitary a) synthesizes hormones which are released into circulation when stimulated b) makes aldosterone which has an effect on blood pressure c) stores hormones received from the hypothalamus which are then released once stimulated d) all of the above week 9a) synthesizes hormones which are released into circulation when stimulatedXavier fell of his roof and now has trouble keeping his balance. Trauma has likely occurred to the following nerve: a) abducens b) vestibulocochlear c) trigeminal d) accessory week 10b) vestibulocochleara periostea bud contains a) yellow bone marrow b) osteoblasts c) arteries d) a and b e) b and ce) b and cciliated pseudostratified columnar epithelium containing mucus-secreting goblet cells ________ a) is found in some of the larger glands b) aid in digestion c) lines most of the respiratory tract d) is more durable than all other epitheliac) lines most of the respiratory tractthis muscle would adduct the scapula a) rhomboid minor b) rhomboid major c) latissimus dorsi d) levator scapulaea) rhomboid minorto reset the membrane back to its resting membrane potential after hyperpolarizition a) depolarization must occur b) sodium ions need to be pumped out of the cell c) potassium ions need to be pumped out of the cell week 9b) sodium ions need to be pumped out of the cellwhich of the following layers of the epidermis is responsible for cell division and replacement? a) stratum corneum b) stratum granulosum c) stratum basale d) stratum lucidum e) stratum sponosumc) stratum basalestep 3 in the action potential graph below a) demonstrates a decreasing membrane potential called hyperpolarization b) is initiated when potassium channels open and potassium rushes out of the cell c) is caused by sodium ions flowing into the cell d) makes the membrane potential more positive question 25 week 9b) is initiated when potassium channels open and potassium rushes out of the cellthe primary blast cell for bone is the ______ a) osteoblast b) chondroblast c) hemocytoblast d) fibroblasta) osteoblastparathyroid hormone production is stimulated by a) neural stimulus b) humoral stimulus c) hormonal stimulus week 12b) humoral stimuluswhich of the following is a function of the sympathetic division? a) dilates bronchioles b) slows heartbeat c) stimulates activity of the stomach d) contracts smooth muscle of the bladder wall and relaxes urethral sphincter week 10a) dilates bronchioleswhich of the following glands secrete a salty substance a) apocrine glands b) sebaceous glands c) eccrine glands d) goblet glandsb) sebaceous glandsthis tissue lines blood vessels and the heart a) mucous membrane b) endothelium membrane c) cutaneous membrane d) serous membraneb) endothelium membranehyper secretion of growth hormone during childhood can lead to a) pituitary dwarfism b) acromegaly c) gigantism d) usually causes no problem week 12c) gigantisma secondary ossification center a) occurs at birth b) occurs when a bone collar forms around the diaphysis of a bone c) occurs after the epiphysis ossifies d) is surrounded by fibrocartilagec) occurs after the epiphysis ossifiesthe space located above the arachnoid mater but below the dura mater in the skull is called a) subarachnoid space b) epidural space c) subdural space week 9c) subdural spacethe major regions of a hair shaft include all of the following EXCPET ________ a) medulla b) cortex c) external root sheath d) cuticlec) external root sheaththe diencephalon a) is composed of the thalamus, hypothalamus and pituitary glands b) contains the pineal gland c) contains the midbrain, epithalamus and hypothalamus d) is located in the frontal lobe week 9b) contains the pineal glandthe lumbar plexus provides sensory and motor fibers to the a) knees b) feet c) chest d) upper arms week 10a) kneesthe lumbar curvature is a) convex b) concave c) a fairly straight portion of the spinal column week 5+6b) concavethe tibia a) has a projection called the lateral malleolus b) does not receive the weight of the body from the femur c) articulates with the talus bone and the femur d) all of the above week 5+6c) articulates with the talus bone and the femurlong preganglionic fibers are found in the ________ nervous system a) sympathetic b) parasympathetic week 10b) parasympatheticthe most superficial of the abdomen muscles is the a) transverse abdominis b) external oblique c) rectus abdominis d) pectoralis majorb) external obliqueotitis media a) is more common in people with vertically slanted pharyngotympanic tubes b) can cause pain due to pressure increasing in the area between the external acoustic meatus and the tympanic membrane c) is common in children that have sore throats because bacteria can easily colonize their tubes d) all of the above week 11c) is common in children that have sore throats because bacteria can easily colonize their tubesa ganglion a) is made up of myelinated axons b) is a collection of neuronal cell bodies in a spinal nerve c) is made up of white matterb) is a collection of neuronal cell bodies in a spinal nervea positive knee jerk reflex a) proves that your neurons can signal/communicate effectively with your brain b) that is really weak indicates a very excitable spinal cord c) lets your clinician know that your spinal cord can relay information to effector muscles d) indicates you have peripheral nerve damage week 10d) indicates you have peripheral nerve damagemixed cranial nerves containing both motor and sensory fibers include all EXCEPT which of the following? a) hypoglossal b) olfactory c) trigeminal d) facial week 10b) olfactoryaction potentials can occur a) in muscle fibres b) in neurons c) in white matter d) all the above e) none of the aboveb) in neuronsthe following cellular extensions moves substances like fluid across cell surfaces a) microvilli b) cilia c) flagellum d) all the aboveb) ciliain order to smell a substance a) the chemical must be volatile and bind to chemoreceptors b) the odorant molecule must diffuse into the olfactory pore c) you must have an intact nerve II d) you must stimulate your gustatory cortex in the brain week 11a) the chemical must be volatile and bind to chemoreceptorsthe gastrocnemius muscle a) lateral to the soleus b) is involved in foot eversion c) is located medially in the anatomical position d) is a thigh musclea) lateral to the soleusthis layer of the epidermis that contain one to five layers of flattened cells and deteriorating organelles is the a) stratum basale b) stratum granulosum c) stratum corneum d) stratum spinosum e) stratum lucidumb) stratum granulosum

BLG EXAM

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