Week 5 — Quiz (auto-graded) · Tissues (Histology)

Course: Anatomy & Physiology I (BIOL 2301 + BIOL 2101) · Silver Oak University (fictional sample) · Prof. Navarro
Objective tested: Objective 3 — the four primary tissue types; epithelial classification (layers × shape); connective tissue & its subtypes (incl. blood); the three muscle types; nervous tissue; structure→function.
Points: 10 (1 each) · Assignment group: Quizzes (10% of grade) · Due: end of Module 5.

This is the human-readable quiz with its vetted answer key and feedback. The import-ready Classic QTI is in F-quiz-week-05-qti.xml (generated by the shared validated script — parses with 10 items, every single-answer item exactly one correct). The reusable item-bank entries and the Canvas placement block are at the bottom of this file.

Blueprint

No trick questions; distractors target the Week 5 misconceptions named in the lecture outline.

Questions, key, and feedback

Q1 (MC). Which list names the four primary tissue types of the body?
- A. Epithelial, connective, muscle, nervous ✅
- B. Squamous, cuboidal, columnar, transitional
- C. Skeletal, cardiac, smooth, striated
- D. Loose, dense, cartilage, bone
Feedback: The four primary tissues are epithelial (covers/lines), connective (supports), muscle (moves), and nervous (communicates). B names epithelial cell shapes; C names the muscle subtypes; D names connective subtypes — each is a subdivision of one tissue, not the four big categories.

Q2 (Matching). Match each primary tissue type to its defining feature or function.
| Tissue type | Correct feature/function |
|---|---|
| Epithelial tissue | Tightly packed cells that cover and line surfaces |
| Connective tissue | Scattered cells in an abundant extracellular matrix |
| Muscle tissue | Contracts to produce movement |
| Nervous tissue | Neurons and neuroglia that communicate by electrical signals |
Feedback: Four fabrics, four jobs: epithelial = packed cells covering/lining; connective = cells dispersed in a matrix (support/bind/transport); muscle = contraction → movement; nervous = neurons + glia → communication.

Q3 (MC). Which set of features correctly describes epithelial tissue?
- A. Highly vascular, with cells widely spaced in a fluid matrix
- B. Avascular, with tightly packed cells, apical and basal surfaces, resting on a basement membrane ✅
- C. Made of contractile fibers with intercalated discs
- D. Made of neurons that conduct impulses
Feedback: Epithelium is avascular (no blood vessels — it diffuses nutrients from below), with tightly packed cells, apical/basal polarity, and a basement membrane. A describes blood/connective; C describes cardiac muscle; D describes nervous tissue.

Q4 (MC). What most clearly distinguishes connective tissue from epithelial tissue?
- A. Connective tissue is always a single layer of cells
- B. Connective tissue has scattered cells surrounded by an abundant extracellular matrix of ground substance and fibers ✅
- C. Connective tissue never contains blood vessels
- D. Connective tissue lines the surface of the skin
Feedback: The defining contrast: epithelium = packed cells, little matrix; connective = scattered cells in lots of matrix (ground substance + fibers). A and D describe epithelium; C is false — most connective tissue is vascular (and blood is connective tissue).

Q5 (MC). Blood is classified as which of the four primary tissue types?
- A. Epithelial tissue
- B. Muscle tissue
- C. Connective tissue (a fluid connective tissue) ✅
- D. Nervous tissue
Feedback: Blood is a connective tissue — its cells (red cells, white cells, platelets) are suspended in a fluid extracellular matrix called plasma. That cells-in-matrix arrangement is the connective-tissue signature it shares with bone, cartilage, and tendon.

Q6 (Matching). Match each of the three muscle types to its identifying feature.
| Muscle type | Correct identifying feature |
|---|---|
| Skeletal muscle | Striated, voluntary, multinucleate fibers |
| Cardiac muscle | Striated, involuntary, with intercalated discs |
| Smooth muscle | Non-striated, involuntary, in walls of hollow organs |
Feedback: All three contract, but: skeletal = striated + voluntary + multinucleate (moves bones); cardiac = striated + involuntary + intercalated discs (heart only); smooth = non-striated + involuntary (vessel/gut/bladder walls).

Q7 (Multiple answer — select all that apply). Which of the following are functions of epithelial tissue?
- A. Protection ✅
- B. Absorption ✅
- C. Secretion ✅
- D. Contraction to move bones
- E. Conducting nerve impulses
Feedback: Epithelial functions are protection, absorption, secretion, and filtration. Contraction (D) is muscle; conducting impulses (E) is nervous tissue — those are the distractors.

Q8 (True / False). "Stratified epithelium is made of a single layer of cells."
- True
- False ✅
Feedback: False. Stratified = many stacked layers; simple = a single layer. "Simple is single, stratified is stacked." Stratified squamous (e.g., the outer skin) uses its many layers for protection against wear.

Q9 (MC). Nervous tissue is best described as —
- A. tightly packed cells that secrete mucus
- B. neurons plus supporting neuroglia that communicate by electrical signals ✅
- C. a fluid matrix carrying red and white cells
- D. contractile fibers anchored to bone
Feedback: Nervous tissue = neurons (carry/conduct electrical signals) + neuroglia (glia) (support, insulate, nourish). A describes epithelium; C describes blood (connective); D describes skeletal muscle.

Q10 (MC). Simple squamous epithelium is a single layer of thin, flat cells. Where would you expect to find it, and why?
- A. Lining the air sacs (alveoli) and capillaries, because thin flat cells allow rapid diffusion ✅
- B. Forming the tough outer layer of skin, because many flat layers resist abrasion
- C. In tendons, because flat cells resist stretching
- D. In the heart wall, because flat cells contract forcefully
Feedback: Simple squamous = one flat thin layer → the shortest distance to cross, so it's found where rapid diffusion/filtration matters: the alveoli and capillaries. B describes stratified squamous (skin); C is dense connective (tendon); D is cardiac muscle — none are simple squamous.

Answer key (quick reference)

Quality gate (self-checked): each single-answer item has exactly one correct option; the multiple-answer item (Q7) lists the three true epithelial functions (A, B, C) and requires the muscle/nervous distractors (D, E) to be left unselected; the two matching items pair every tissue type and every muscle type to a distinct correct feature; every tissue type, subtype, identifying feature, and location is verified against standard histology (OpenStax A&P Ch. 4 — Types of Tissues / Epithelial / Connective; Histology Guide). Specifically verified: the four primary tissues; epithelial = avascular, polar, basement membrane, classified by layers (simple/stratified) × shape (squamous/cuboidal/columnar); connective = cells in an abundant matrix; blood is a fluid connective tissue; skeletal/cardiac/smooth features (cardiac = intercalated discs); nervous = neurons + neuroglia; simple squamous → diffusion (alveoli/capillaries). Anatomy-accuracy gate: PASS. No computation in this quiz, so no arithmetic to mis-key — the quantitative gate does not apply this week (Week 5 is conceptual histology; the quantitative pockets are Weeks 2, 3, and 12).

Item-bank entries (for variants + the midterm/final)

All ten items are tagged course=BIOL2301 · week=5 · objective=3 · topic=tissues-histology and deposited in Item Bank: Week 5 — Tissues (Histology). The midterm (Week 8) and the per-term variant updates draw fresh items from this bank. (Tags: q1 four-tissue-types, q2 tissue-type-match, q3 epithelial-features, q4 connective-matrix, q5 blood-is-connective, q6 muscle-types-match, q7 epithelial-functions, q8 stratified-misconception, q9 nervous-tissue, q10 simple-squamous-function.)

Canvas placement block

canvas_object   = Quizzes::Quiz
title           = "Week 5 Quiz — Tissues (Histology)"
assignment_group = "Quizzes"
points_possible = 10
grading_type    = points
due_offset_days = 6        # 6 days after module start
published       = true
shuffle_answers = true
provenance      = "~ Prof. Navarro's edition · Fall 2026 · built with thecoursemaker.com"