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University of Phoenix Material Final Examination (v2)




Question;University of;Phoenix Material;Final Examination;(v2);The study of cells is;a. cytology;b. histology;c. molecular;biology;d. microbiology;e. surface;anatomy;In a positive feedback mechanism, the response of the;effector;a. reverses;the original stimulus;b. enhances the;original stimulus;c. has no;effect on the original stimulus;d. is;usually damaging to the body;e. creates;a cycle that leads away from homeostasis;Ionic bonds form when;a. atomic;nuclei fuse;b. atoms;become ionized;c. neutrons;are transferred from one atom to another;d. protons;are lost from atoms;e. electrons;are shared between two atoms;Reactions that bond atoms or molecules together are called;reactions.;a.;hydration;b.;synthesis;c.;hydrolysis;d.;reversible;e.;oxidation;Sugars;a. are the;body's source of immediate energy;b. are the;building blocks of nucleotides;c. provide;much of the structure of body cells and tissues;d. contain;the genetic information of the cell;e. insulate;and cushion the body;The nuclear envelope;a. separates;the nucleus from the rest of the cell;b. is a;rigid protein membrane;c. is not;permeable;d. has a;single layer of phospholipids;e. regulates;movement of materials into and out of the cell;Recognition proteins;a. are;binding sites for other molecules;b. utilize;the G protein complex to function;c. are;found only on endoplasmic reticulum;d. allow;cells to recognize one another;e. provide;a "door" through which extracellular molecules can enter the cell;Which of the following is a function of muscle;tissue?;a. conduction;of action potentials;b. secretion;and absorption of molecules;c. support;of other tissue types;d. contraction;e. shock;absorption;Nervous tissue;a. functions;as an insulator and a site of energy storage;b. exists;in three forms: yellow, red, and brown;c. contains;large amounts of extracellular matrix;d. is;located in the brain and spinal cord;e. does;not contain lipids;Reddening of the skin (blushing) is the result of the;a. quantity;of melanin in the skin;b. number;of keratinocytes in the skin;c. increased;blood flow in the dermis;d. thickness;of the stratum basale;e. number;of melanocytes in the skin;What does structure "A" represent on the;diagram?;a. hair;follicle;b. arrector;pili;c. dermis;d. hypodermis;e. sebaceous;gland;12. When blood calcium levels are high;a.;osteoclast activity increases;b.;calcitonin secretion increases;c.;calcium absorption is increased;d.;bones lose bone tissue;e.;osteoblast activity decreases;13. What does structure "B" represent;on the bone diagram?;a.;cancellous bone;b.;diaphysis;c.;epiphyseal lines;d.;articular cartilage;e.;epiphysis;14. What does structure "C;represent?;a.;frontal bone;b.;occipital bone;c.;parietal bone;d.;sphenoid bone;e.;temporal bone;15. The figure illustrates bones of the right;upper limb. What does "B" represent?;a.;radius;b.;carpals;c.;phalanges;d.;metacarpals;e.;ulna;16. The figure illustrates bones of the right;lower limb. What does "A" represent?;a.;femur;b.;fibula;c.;tarsals;d.;tibia;e.;patella;17. The joint between the trochlea of the;humerus and the proximal end of the ulna is a _____ joint.;a.;plane;b.;saddle;c.;hinge;d.;pivot;e.;ball and socket;18. What does structure "B" represent;on the diagram?;a.;tendon;b.;articular cartilage;c.;bursa;d.;fibrous capsule;e.;synovial membrane;19. Which of the following is composed of actin;molecules?;a.;thick myofilaments;b.;thin myofilaments;c.;Z disks;d.;sarcolemma;e.;tropomyosin;20. What does "D" represent on the;diagram?;a.;threshold;b.;depolarization;c.;depolarization phase of action potential;d.;repolarization phase of action potential;21. The extension of the elbow represents;a;a.;class I lever system;b.;class II lever system;c.;class III lever system;d.;class IV lever system;e.;non-lever system;22. Label muscle "D" on the diagram.;a.;orbicularis oculi;b.;temporalis;c.;trapezius;d.;sternocleidomastoid;e.;masseter;23. What does "B" represent?;a.;coracobrachialis;b.;deltoid;c.;pectoralis major;d.;biceps brachii;e.;serratus anterior;24. The peripheral nervous system includes;the;a.;nerves;b.;spinal cord;c.;brain;d.;brain stem;e.;CSF;25. Identify structure "B" on the;neuron.;a.;Schwann cell;b.;Node of Ranvier;c.;neuron cell body (soma);d.;dendrites;e.;axon;26. The figure is a process figure of the;chemical synapse. What does "A" represent?;a.;postsynaptic membrane;b.;synaptic cleft;c.;synaptic vesicle;d.;voltage-gated calcium channel;e.;presynaptic terminal;27. Which of the following plexuses gives rise;to the femoral nerve?;a.;cervical plexus;b.;thoracic plexus;c.;brachial plexus;d.;lumbar plexus;e.;coccygeal plexus;28. Label component "C" on the reflex;arc.;a.;sensory receptor;b.;effector organ;c.;sensory neuron;d.;motor neuron;e.;interneuron;29. A small lesion in the brain which resulted;in clumsy behavior would probably be located in the;a.;medulla oblongata;b.;pons;c.;cerebellum;d.;hypothalamus;e.;cerebrum;30. The midbrain;a.;consists of a broad band of gray matter;b.;is found inferior to the diencephalon;c.;is a band of commissural fibers that;connects the right cerebral hemisphere to the left cerebral hemisphere;d.;connects the frontal lobe to the occipital;lobe;e.;connects the frontal lobe to the parietal;lobe;31. Which nerve controls mastication?;a.;facial nerve;b.;vagus nerve;c.;trigeminal nerve;d.;glossopharyngeal nerve;32. Which of the following is responsible for;balance?;a.;nose;b.;tongue;c.;skin;d.;ear;e.;eye;33. Label area "E" on the cerebral;cortex.;a.;visual cortex;b.;primary motor cortex;c.;primary somatic sensory cortex;d.;motor speech area (Broca's area);e.;sensory speech area (Wernicke's area);34. The figure is a sagittal section of the;eye. What does "B" represent?;a.;iris;b.;pupil;c.;lens;d.;conjunctiva;e.;cornea;35. Which of the following is an effector;controlled by the somatic nervous system?;a.;cardiac muscle;b.;glands;c.;skeletal muscle;d.;smooth muscle in blood vessels;e.;smooth muscle in the digestive system;36. Identify structure "C" on the;bottom diagram.;a.;autonomic ganglion;b.;somatic motor neuron;c.;effector organ (smooth muscle of GI tract);d.;postganglionic neuron;e.;preganglionic neuron;37. The nervous system;a.;releases neurotransmitters into ducts;b.;secretes chemicals that reach their targets;through the bloodstream;c.;communicates via frequency-modulated;signals;d.;contains organs called exocrine glands;e.;is isolated from the nervous system;38. Consider the following events in the;membrane bound receptor model;1: Hormone receptor binds the hormone;2: G protein is triggered;3: Second messenger is produced;4: Protein kinases are activated;5: Calcium channels are opened;Which of these events occurs in the;nucleus?;a.;1, 3, 5;b.;1, 3, 4;c.;1, 2, 3;d.;3, 4, 5;e.;None of these events occur in the nucleus;39. The posterior pituitary;a.;rests in the sella turcica;b.;is also called the neurohypophysis;c.;is located inferior to the pituitary gland;d.;regulates the secretory activity of the;pituitary gland;e.;is located superior to the thalamus;40. The major secretory products of the zona;fasciculata of the adrenal cortex are;a.;glucocorticoids;b.;mineralocorticoids;c.;androgens;d.;catecholamines;e.;cortisol and ADH


Paper#62746 | Written in 18-Jul-2015

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