Introduction to the Human Body

Question 1

What is the smallest living unit of function in the body?

Answer 1

Cell

Question 2

What is also known as the cell membrane?

Answer 2

Plasma membrane

Question 3

What is the outer boundary of the cell composed of?

Answer 3

Proteins and lipids

Question 4

What is in charge of everything that goes on in the cell?

Answer 4

Nucleus

Question 5

What is a double-layered substance with openings to let materials pass between it and the cytoplasm?

Answer 5

Nuclear membrane

Question 6

What material forms cells and fills the space between the plasma membrane and the nucleus?

Answer 6

Cytoplasm

Question 7

What are specialized structures in the cytoplasm that have important jobs in the function of the cell?

Answer 7

Organelles

Question 8

What is characterized by abnormal and uncontrolled cell growth that is localized and does not spread to other parts of the body?

Answer 8

Benign tumors

Question 9

What are true cancers that can cause serious illness and even death?

Answer 9

Malignant tumors

Question 10

What is a body of cells organized to perform a certain function?

Answer 10

Tissue

Question 11

What is a complex network of proteins, fluid, and various molecules that support the cells?

Answer 11

Extracellular matrix

Question 12

What covers the inner and outer surfaces of the body?

Answer 12

Epithelial tissue

Question 13

What connects or supports other body structures?

Answer 13

Connective tissue

Question 14

What relaxes and contracts to allow body parts to move and certain organs to function?

Answer 14

Muscle tissue

Question 15

What extends throughout the body to carry messages to and from the brain?

Answer 15

Nerve tissue

Question 16

Which type of epithelial cells forms the outer layer of skin?

Answer 16

Squamous epithelial cells

Question 17

What cells form a kind of epithelial tissue that secretes its products directly into the bloodstream?

Answer 17

Endocrine gland

Question 18

What cells form the tissue that protects the kidney tubules and covers the ovaries and certain glands?

Answer 18

Cuboidal epithelial

Question 19

Which connective tissue forms a membrane that surrounds muscles or organs?

Answer 19

Fascia

Question 20

What is the rubbery, smooth material that lines the surfaces of joints?

Answer 20

Synovial membrane

Question 21

What is a form of connective tissue that can also provide energy in the form of lipid molecules?

Answer 21

Adipose tissue

Question 22

What transports nutrients and wastes to and from cells?

Answer 22

Blood

Question 23

What is the interstitial fluid that has been filtered by lymph vessels?

Answer 23

Lymph

Question 24

What is the fundamental unit of nervous tissue?

Answer 24

Nerve cell

Question 25

What cells are also known as neurons?

Answer 25

Nerve cells

Question 26

What are specially designed to conduct signals from one end of the cell to another?

Answer 26

Neurons

Question 27

What consists of cells, tissues, organs, and systems?

Answer 27

Human body

Question 28

What has three main parts: the plasma membrane, the cytoplasm, and the nucleus?

Answer 28

Cell

Question 29

What are the four types of tissue?

Answer 29

epithelial, connective, muscle, and nerve

Question 30

What are the two major classifications of membranes?

Answer 30

Epithelial and connective

Question 31

What kind of membrane can be divided into two types: mucous and serous?

Answer 31

Epithelial membranes

Question 32

What do two layers of connective tissue form?

Answer 32

Connective membranes

Question 33

What is the smallest living unit of structure in the body?

Answer 33

Cell

Question 34

Which type of tissue can be described as soft and rubbery or hard and rigid?

Answer 34

Connective

Question 35

What is the material that forms cells?

Answer 35

Cytoplasm

Question 36

What cells form the tissue that protects the kidney tubules and covers the ovaries and certain glands?

Answer 36

Cuboidal

Question 37

What are the protective coverings on the brain and spinal cord called?

Answer 37

Meninges

Question 38

What lines the cavities of knee and shoulder joints?

Answer 38

Synovial membranes

Question 39

What are the three main parts of a cell?

Answer 39

Plasma membrane, cytoplasm, and nucleus

Question 40

Which type of tissue covers the inner and outer surfaces of the body?

Answer 40

Epithelial

Question 41

What are numerous, specialized structures in the cytoplasm?

Answer 41

Organelles

Question 42

What is a network of structures in the cytoplasm that connect the parts of the cell?

Answer 42

Cytoskeleton

Question 43

What does the nucleus contain?

Answer 43

Nucleoplasm, a nucleolus, and ribosomes

Question 44

What are parietal pleural and visceral pleural types of?

Answer 44

Serous membrane

Question 45

What are parietal and peritoneal membranes types of?

Answer 45

Serous membrane