2025/2026 / D312 A&P 1 With LAB
Study Guide Section 1 Practice Exam With
Complete Questions And 100%Correct Detailed Answers
|Already Graded A+|Newest Version!!
Choose the following statements that describe keratin:
1. Keratin is a tough, fibrous protein.
2. Keratin is used for pigmenting skin.
3. Keratin helps protect the skin.
4. Keratin participates in immune responses.
5. Keratin protects the skin from UV light. - ANSWER-
Keratin is a tough, fibrous protein.
Keratin helps protect the skin.
,In a skin infection, which cell will take up and process
microbial antigens? - ANSWER-Intraepidermal
macrophages (Langerhans cells)
Which of the following structures found in the skin help
prevent water loss and inhibit bacterial growth on the
surface of the skin? Select all that apply. - ANSWER-Oil
glands and lamellar granules
Put the events of keratinization in order.
A. Accumulate keratohyalin granules
B. Cells increase in size, some retain ability to divide
C. Cell membrane thickens. Cells imbedded in lipid matrix.
D. Cells within this layer proliferate - ANSWER-D, B, A, C
, Albinism is the inherited inability to produce - ANSWER-
Melanin
Anorexia may cause adults to develop fine, unpigmented
hairs to help with warmth and insulation. Which type of
hair is described? - ANSWER-Lanugo
Where in the diagram is hyaline cartilage located? -
ANSWER-A & E (Articular cartilage and proximal
epiphysis)
What type of bone cell secretes hydroxyapatite and
collagen fibers? - ANSWER-B (osteoblast)