Unit 6 Vocab Words

Question 1

Epidermis

Answer 1

The outer layer of skin

Question 2

Dermis

Answer 2

The thick lower layer of skin beneath the epidermis.

Question 3

Cuticle

Answer 3

The protective waterproof outer layer of the epidermis of an animal.

Question 4

Cartilage

Answer 4

A tough flexible tissue that cushions joints and makes up body parts such as the ear and the trachea

Question 5

Axial skeleton

Answer 5

The part of the skeleton made up of the skull, backbone, and rib cage

Question 6

Appendicular skeleton

Answer 6

The part of the skeleton made up of the bones in the shoulders, arms, pelvis, and legs.

Question 7

Myofibrils

Answer 7

Long, rod-shaped cells which make up muscle tissue

Question 8

Involuntary muscle

Answer 8

Muscles that act automatically, like the heart.

Question 9

Voluntary muscle

Answer 9

Muscles that can be consciously controlled, like the arm

Question 10

Neuron

Answer 10

A nerve cell

Question 11

Sensory Neuron

Answer 11

Neurons ending in sensitive receptors, they carry information to the central nervous system

Question 12

Motor neuron

Answer 12

Neurons which pass instructions from the central nervous system to the body.

Question 13

Hormone

Answer 13

A chemical which helps to control the level of substances in the body

Question 14

Endocrine gland

Answer 14

A hormone-making gland

Question 15

Arteries

Answer 15

Strong vessels that carry blood away from the heart to the body

Question 16

Veins

Answer 16

The vessels carrying blood to the heart

Question 17

Hemoglobin

Answer 17

A purple-red chemical in red blood cells that is responsible for carrying oxygen

Question 18

Inhalation

Answer 18

Breathing in

Question 19

Exhalation

Answer 19

Breathing out

Question 20

Digestive enzyme

Answer 20

The fluids produced by digestive glands which contain enzymes that break down food into simpler substances

Question 21

Villi

Answer 21

Tiny, finger-like projections on the lining of the intestine which absorb digested food

Question 22

Excretion

Answer 22

The removal of waste substances from the body

Question 23

Bacteria

Answer 23

A group of microscopic organisms without cell nuclei, many of which cause disease

Question 24

DNA

Answer 24

The acid found in cell nuclei that forms the genes and chromosomes of all living things

Question 25

Virus

Answer 25

Strands of DNA in a protective coat, they invade living cells and cause disease

Question 26

Lymphocyte

Answer 26

A white blood cell that destroys germs by releasing antibodies

Question 27

Immunization

Answer 27

A medical procedure that primes the body’s immune system to fight specific infections