Anatomy of the human body: question bank

Q1

FoundationCells, tissues, organs, systems

Put these in order from smallest to largest: organ, cell, tissue, organ system.

cell → tissue → organ → organ systemtissue → cell → organ → organ systemcell → organ → tissue → organ systemorgan → tissue → cell → organ system

Q2

FoundationCells, tissues, organs, systems

What is an organ?

The smallest living unitA structure made of more than one tissue, doing one main jobA group of organ systemsAny part of the body you can see

Q3

CoreCells, tissues, organs, systems

Blood is classified as which type of tissue?

EpithelialConnectiveMuscleIt is not a tissue at all

Q4

CoreCells, tissues, organs, systems

Why is the femur classed as an organ rather than just "a piece of tissue"?

Because it is very largeBecause it contains several different tissues: bone, cartilage, marrow, blood vessels and nervesBecause it can move on its ownBecause it has a Latin name

Q5

CoreCells, tissues, organs, systems

About how many trillion cells does the best current estimate give for an adult human body (to the nearest whole trillion)?

Your answer (trillion)

Q6

StretchCells, tissues, organs, systems

Why do scientists describe the "37.2 trillion cells" figure as an estimate rather than a measurement?

Because nobody has ever tried to work it outBecause it is built up from typical cell sizes and organ volumes, not from counting every cell directlyBecause the true number is unknowable in principleBecause different people always have exactly the same number of cells

Q7

CoreCells, tissues, organs, systems

Name the four main tissue types the human body is built from.

Your answer

Q8

ChallengeCells, tissues, organs, systems

A doctor examining an unfamiliar tissue sample sees cells packed tightly together in sheets, with almost no material between them. Which tissue type is this most likely to be, and why?

Connective tissue, because it supports thingsEpithelial tissue, because epithelial cells are packed tightly with little between themMuscle tissue, because muscle cells are longNervous tissue, because nerves are everywhere

Q9

FoundationThe skeleton

How many bones does a typical adult human have?

Your answer (bones)

Q10

FoundationThe skeleton

Why does a newborn baby have more bones than an adult?

Babies grow extra bones that later dissolve awayMany separate bones and pieces of cartilage fuse together as a child growsThe counting method used for babies is differentBabies’ bones break more often

Q11

CoreThe skeleton

The axial skeleton has 22 skull bones, 6 ear ossicles, 1 hyoid bone, 26 vertebral column bones, 24 ribs and 1 sternum. What is the total?

Your answer (bones)

Q12

CoreThe skeleton

One hand has 8 carpals, 5 metacarpals and 14 phalanges. How many bones is that in one hand?

Your answer (bones)

Q13

StretchThe skeleton

Two hands (27 bones each) and two feet (26 bones each) together hold what percentage of the 206-bone skeleton, to one decimal place?

Your answer (%)

Q14

CoreThe skeleton

Which of these belongs to the axial skeleton rather than the appendicular skeleton?

The collarboneThe shoulder bladeThe sternumThe femur

Q15

FoundationThe skeleton

A person is 160 cm tall. Using femur ≈ height × 0.267, estimate their femur length in cm to one decimal place.

Your answer (cm)

Human body anatomy: question bank

All 79 questions

Q1

Q2

Q3

Q4

Q5

Q6

Q7

Q8

Q9

Q10

Q11

Q12

Q13

Q14

Q15