A&P Tutorial 2014 Exam 2B

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1) Joe just burned himself on a hot pot. A blister forms and the burn is painful. Joe's burn would best be described as a third-degree burn.

2) The hyponychium is commonly called the cuticle.

3) The reason that the nail bed appears pink is the presence of a large number of melanocytes in the underlying dermis.

4) The most dangerous skin cancer is cancer of the melanocytes.

5) The skin is not able to receive stimuli because the cells of the epidermis are not living and therefore there are no sensory receptors in the skin.

6) When an individual is exposed to extremely low air temperatures, the dermal blood vessels will dilate so that blood and heat will be dissipated.

7) Ceruminous glands are modified merocrine glands.

8) Sweat glands continuously produce small amounts of sweat, even in cooler temperatures.

Multiple Choice

9) Select the most correct statement concerning skin cancer.A) Most tumors that arise on the skin are malignant.B) Squamous cell carcinomas arise from the stratum corneum.C) Basal cell carcinomas are the least common but most malignant.D) Melanomas are rare but must be removed quickly to prevent them from metastasizing.

10) Acne is a disorder associated with ________.A) sweat glandsB) sebaceous glandsC) Meibomian glandsD) ceruminous glands

11) Which of the following cutaneous receptors is specialized for the reception of touch or light pressure?A) Meissner's corpusclesB) Pacinian corpusclesC) free nerve endingsD) Krause's end bulbs

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12) Which of the following is a skin sensory receptor for touch?A) Pacinian corpuscleB) tactile corpuscleC) Ruffini bodyD) free nerve ending

13) The single most important risk for skin cancer is ________A) raceB) geneticsC) use of farm chemicalsD) overexposure to UV radiation

14) Which glands produce ear wax?A) Merocrine glandsB) Apocrine glandsC) Ceruminous glandsD) Eccrine Glands

15) Which type of skin cancer appears as a scaly reddened papule and tends to grow rapidly and metastasize?A) MelanomaB) Squamous cell carcinomaC) Basal cell carcinomaD) Adenoma

Match the following:

A) SpiralB) ComminutedC) Greenstick

16) An incomplete fracture or cracking of the bone without actual separation of the parts. Common in children.

17) Bone fragments into many pieces.

18) Common sports fracture resulting from a twisting force.

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19) The term osteoid refers to the organic part of the matrix of compact bones.

20) Sixty-five percent of the mass of bone is a compound called hydroxyapatite.

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21) All bones stop growing by the end of adolescence.

22) The hormone that is primarily involved in the control of bone remodeling is the parathyroid hormone.

23) Closure of the epiphyseal plate stops all bone growth.

Multiple Choice

24) What kind of tissue is the forerunner of long bones in the embryo?A) elastic connective tissueB) dense fibrous connective tissueC) fibrocartilageD) hyaline cartilage

25) What can a deficiency of growth hormone during bone formation cause?A) inadequate calcification of boneB) decreased osteoclast activityC) decreased proliferation of the epiphyseal plate cartilageD) increased osteoclast activity

26) Ossification of the ends of long bones ________.A) is a characteristic of intramembranous bone formationB) involves medullary cavity formationC) is produced by secondary ossification centersD) takes twice as long as diaphysis ossification

27) Which structure allows the diaphysis of the bone to increase in length until early childhood?A) lacunaeB) Haversian systemC) epiphyseal plateD) epiphyseal line

28) Which of the following is the single most important stimulus for epiphyseal plate activity during infancy and childhood?A) parathyroid hormoneB) calciumC) growth hormoneD) thyroid hormone

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49) The resilience of bone is primarily due to which of the following?A) amount of mineral salts in the boneB) presence of osteoblasts in the boneC) sacrificial bonds in or between collagen moleculesD) amount of mineral salt and protein in the bone

30) For intramembranous ossification to take place, which of the following is necessary?A) A bone collar forms around the cartilage model.B) An ossification center forms in the fibrous connective tissue.C) The cartilage matrix begins to deteriorate.D) A medullary cavity forms.

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Match

31. inferior nasal concha 32. infraorbital foramen 33. sphenoid bone 34. parietal bone 35. supraorbital foramen

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36. maxilla 37. sphenoid bone 38. vomer 39. palatine process of maxilla 40. zygomatic process of temporal bone

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Match (skeleton above)41. Occipital Bone 42. radius 43. patella 44. illium 45. scapula

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46) Goblet cells are found within pseudostratified ciliated columnar epithelium.

47) Epithelial tissues always exhibit polarity; that is, they have a free surface and a basal surface.

48) Simple cuboidal epithelia are usually found in areas where secretion and absorption occur.

49) Depending on the functional state of the bladder, transitional epithelium may resemble stratified squamous or stratified cuboidal epithelium.

50) Squamous cells are flattened and scalelike when mature.

Multiple Choice

51) Which of the following would be of most importance to goblet cells and other glandular epithelium?A) microvilliB) Golgi bodiesC) lysosomesD) multiple nuclei

52) The simple columnar epithelium that form absorptive cells of the digestive tract have which characteristic?A) dense microvilliB) a rich vascular supplyC) fibroblastsD) cilia

53) Pseudostratified columnar epithelium ciliated variety ________.A) lines most of the respiratory tractB) aids in digestionC) possesses no goblet cellsD) is not an epithelial classification

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54) Which of the following is a single-celled layer of epithelium that forms the lining of serous membranes?A) pseudostratified columnarB) simple columnarC) simple squamousD) simple cuboidal

55) Which tissue type arises from all three embryonic germ layers?A) epithelial tissueB) connective tissueC) nervous tissueD) muscle tissue

56) Groups of cells that are similar in structure and perform a common or related function form a(n) ________.A) organB) tissueC) organismD) organ system

57) Which of the following is true about epithelia?A) Simple epithelia are commonly found in areas of high abrasion.B) Stratified epithelia are associated with filtration.C) Endothelium provides a slick surface lining all hollow cardiovascular organs.D) Pseudostratified epithelia are commonly keratinized.

58) ________ epithelium appears to have two or three layers of cells, but all the cells are in contact with the basement membrane.A) Stratified cuboidalB) Stratified columnarC) TransitionalD) Pseudostratified columnar

59) Select the correct statement regarding epithelia.A) Simple epithelia form impermeable barriers.B) Stratified epithelia are tall, narrow cells.C) Stratified epithelia are present where protection from abrasion is important.D) Pseudostratified epithelia consist of at least two layers of cells stacked on top of one another.

60) Which cells are commonly found wedged between simple columnar epithelial cells?A) goblet cellsB) mast cellsC) macrophagesD) cilia

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Xtra Credit

1) Although the integument is a covering, it is by no means simple, and some of its functions include ________.A) the dermis providing the major mechanical barrier to chemicals, water, and other external substancesB) resident macrophage-like cells whose function is to ingest antigenic invaders and present them to the immune systemC) cooling the body by increasing the action of sebaceous glands during high-temperature conditionsD) epidermal blood vessels serving as a blood reservoir

2) Normal bone formation and growth are dependent on the adequate intake of ________.A) calcium, phosphate, and vitamin DB) potassium, phosphate, and vitamin DC) sodium, calcium, and vitamin ED) vitamin D, phosphate, and chloride

3) In some cases the epiphyseal plate of the long bones of children closes too early. What might be the cause?A) overproduction of thyroid hormoneB) elevated levels of sex hormonesC) too much vitamin D in the dietD) osteoblast activity exceeds osteoclast activity

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4. Match (must get all three correct to get 1 point)

iliac fossa

ischial spine

pelvic brim

5) Inability to absorb digested nutrients and secrete mucus might indicate a disorder in which tissue?A) simple squamousB) transitionalC) simple columnarD) stratified squamous

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