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Worksheets

ZOO 101 PART 11

Total questions: 47

Worksheet time: 24mins

Name
Class
Date
1.

A biology student observes a skin layer with dead, flattened keratinocytes that flake off. This is the:

a)

Stratum basale

b)

Dermis

c)

Stratum corneum

d)

Hypodermis

2.

During a dissection, Emmanuel finds a gland emptying oil into a hair follicle. This is a:

a)

Eccrine gland

b)

Mammary gland

c)

Sebaceous gland

d)

Apocrine sweat gland

3.

A patient’s skin cannot synthesize vitamin D despite sun exposure. Which epidermal cells are likely deficient?

a)

Keratinocytes

b)

Langerhans cells

c)

Melanocytes

d)

Corneocytes

4.

A forensic scientist identifies a bone with a large medullary cavity and growth plate. This best describes a:

a)

Sesamoid bone

b)

Long bone

c)

Plate-like bone

d)

Cuboidal bone

5.

A man has patchy white skin with no melanin in affected areas. Which disorder matches this?

a)

Melasma

b)

Freckles

c)

Vitiligo

d)

Albinism

6.

A muscle tissue sample shows striations, multiple peripheral nuclei, and voluntary control. This is:

a)

Smooth muscle

b)

Cardiac muscle

c)

Skeletal muscle

d)

Epithelial tissue

7.

A diver’s skeleton shows 7 cervical vertebrae. This supports the general rule that:

a)

Aquatic mammals have fewer cervicals

b)

All mammals have 7 cervical vertebrae

c)

Cervicals vary by diet

d)

Whales lack cervical vertebrae

8.

After childbirth, a woman produces milk. This function is performed by:

a)

Modified eccrine glands

b)

Sebaceous glands

c)

Modified apocrine glands

d)

Hair follicles

9.

A burn patient loses the ability to sense pain or temperature on the arm. Which skin layer was destroyed?

a)

Epidermis

b)

Stratum corneum

c)

Dermis

d)

Hypodermis

10.

A student notes that sweat from palms helps grip. These glands are:

a)

Apocrine

b)

Sebaceous

c)

Eccrine

d)

Mammary

11.

A cadaver’s heart muscle shows branched fibers with intercalated discs. This tissue is:

a)

Skeletal

b)

Smooth

c)

Cardiac

d)

Connective

12.

A child fractures a wrist bone made of small, cube-shaped elements. This is a:

a)

Long bone

b)

Sesamoid

c)

Cuboidal bone

d)

Plate-like bone

13.

A man uses harsh soap and develops dry, irritated skin. Which protective component was removed?

a)

Melanin

b)

Surface film (sebum + sweat)

c)

Keratin

d)

Langerhans cells

14.

Which vertebrae directly connect to the rib cage?

a)

Cervical

b)

Thoracic

c)

Lumbar

d)

Sacral

15.

A whale skeleton has 18 lumbar vertebrae. This is common in:

a)

All mammals

b)

Toothed whales (Odontoceti)

c)

Primates

d)

Bats

16.

A patient cannot regulate body temperature in heat. Which skin function is impaired?

a)

Immune defense

b)

Excretion

c)

Thermoregulation via sweat

d)

Water retention

17.

The plasma membrane of a muscle fiber is called the:

a)

Endomysium

b)

Sarcoplasm

c)

Sarcolemma

d)

Myofilament

18.

A newborn has no melanin in skin, hair, or eyes and is highly light-sensitive. This is:

a)

Vitiligo

b)

Melasma

c)

Albinism

d)

Addison’s disease

19.

A bone in the skull is thin, flat, and protects the brain. This is a:

a)

Long bone

b)

Cuboidal bone

c)

Plate-like bone

d)

Sesamoid

20.

Which structure links the lower limb to the axial skeleton?

a)

Clavicle

b)

Scapula

c)

Pelvic girdle (ilium, ischium, pubis)

d)

Sternum

21.

A man shivers in cold weather. Heat is generated primarily by:

a)

Smooth muscle in vessels

b)

Cardiac muscle metabolism

c)

Involuntary contraction of skeletal muscle

d)

Sebaceous gland activity

22.

The “true skin” that contains blood vessels, nerves, and glands is the:

a)

Epidermis

b)

Stratum corneum

c)

Dermis

d)

Hypodermis

23.

A histology slide shows spindle-shaped, non-striated cells in the wall of the intestine. This is:

a)

Skeletal muscle

b)

Cardiac muscle

c)

Smooth muscle

d)

Nervous tissue

24.

The shaft of a long bone is called the:

a)

Epiphysis

b)

Metaphysis

c)

Diaphysis

d)

Medulla

25.

A patient’s coccyx is painful after a fall. This results from injury to fused:

a)

Cervical vertebrae

b)

Thoracic vertebrae

c)

Lumbar vertebrae

d)

Caudal vertebrae

26.

Which cells detect pathogens and initiate immune responses in the skin?

a)

Keratinocytes

b)

Melanocytes

c)

Langerhans cells

d)

Corneocytes

27.

A woman develops dark facial patches during pregnancy. This is likely:

a)

Vitiligo

b)

Albinism

c)

Melasma

d)

Freckles

28.

The pectoral girdle consists of the:

a)

Ilium and ischium

b)

Clavicle and scapula

c)

Femur and patella

d)

Ribs and sternum

29.

A runner sweats to cool down. Sweat is produced by glands that open directly onto the:

a)

Hair follicle

b)

Sebaceous duct

c)

Skin surface (pores)

d)

Nail bed

30.

Which bone type includes the patella?

a)

Long

b)

Cuboidal

c)

Plate-like

d)

Sesamoid

31.

The cytoplasm of a muscle fiber is called:

a)

Sarcolemma

b)

Sarcoplasm

c)

Endomysium

d)

Myofibril

32.

Red blood cells are produced in the:

a)

Dermis

b)

Hypodermis

c)

Bone marrow

d)

Epidermis

33.

A teen uses a scrub daily and gets red, inflamed skin. Which skin care guideline was violated?

a)

Wash face once daily

b)

Exfoliate only 1–2 times/week

c)

Use hot water

d)

Skip moisturizer

34.

Which pigment gives red hair its color?

a)

Eumelanin

b)

Hemoglobin

c)

Pheomelanin

d)

Bilirubin

35.

The atlas (C1) articulates with the:

a)

Axis

b)

Occipital condyles of the skull

c)

Thoracic vertebrae

d)

Clavicle

36.

A man cannot control intestinal movement after nerve damage. Which muscle is involved?

a)

Skeletal

b)

Cardiac

c)

Smooth

d)

Striated voluntary

37.

Wearing clean, breathable fabrics helps prevent:

a)

Bone fractures

b)

Skin irritation and infections

c)

Vitamin D deficiency

d)

Hair loss

38.

The hypodermis primarily functions in:

a)

UV protection

b)

Sensation

c)

Fat storage and insulation

d)

Sweat production

39.

A fossil shows 12 thoracic vertebrae. This is typical for:

a)

Most mammals

b)

Only humans

c)

Birds

d)

Fish

40.

Facial muscles that attach to skin are a type of:

a)

Smooth muscle

b)

Cardiac muscle

c)

Skeletal muscle

d)

Involuntary muscle

41.

Double cleansing is recommended for people who:

a)

Have dry skin

b)

Wear makeup

c)

Avoid sunscreen

d)

Shower once a week

42.

The transition zone between the shaft and end of a long bone is the:

a)

Diaphysis

b)

Epiphysis

c)

Metaphysis

d)

Periosteum

43.

Which sweat glands are most numerous on palms and soles?

a)

Apocrine

b)

Sebaceous

c)

Eccrine

d)

Mammary

44.

A patient with Addison’s disease may show:

a)

Loss of all pigment

b)

Bronze-like skin darkening

c)

White patches

d)

Excessive sweating

45.

The scapula is classified as a:

a)

Long bone

b)

Cuboidal bone

c)

Plate-like bone

d)

Sesamoid

46.

Muscle fibers originate from which embryonic layer?

a)

Ectoderm

b)

Endoderm

c)

Mesoderm

d)

Neuroectoderm

47.

Keeping nails trimmed prevents:

a)

Sunburn

b)

Bacterial and fungal infections

c)

Hair thinning

d)

Bone loss