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Biology- core concepts > Tissues > Flashcards

Tissues Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What are the different types of tissue?

A

epithelial, muscle, connective, nervous

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2
Q

What is the definition of a tissue?

A

A group of similar cells working together for a common function.

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3
Q

Where is epithelial tissue found?

A

Lining tissue, covers the surface of organs, cavities and tubes

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4
Q

What are some features of epithelial tissue?

A

Cells packed closely together
No blood vessels (but may have nerve endings)
Cells sit on basement membrane

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5
Q

What are the 5 types of epithelial tissue?

A

squamous, cuboidal, columnar, ciliated columnar, glandular

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6
Q

What is the structure of squamous tissue?

A

Flattened cells on a basement membrane

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7
Q

What is the function of squamous tissue?

A

lining tissue
covers the surface of organs, cavities and tubules
thin layer of cells for exchange

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8
Q

Where is squamous tissue located in the body?

A

walls of alveoli
blood vessels
lining of renal (bowmans) capsule of the nephron

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9
Q

What is the structure of cuboidal tissue?

A

cells have cube shape
tissue is one cell thick

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10
Q

What is the function of cuboidal tissue?

A

secretion and reabsorption

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11
Q

Where is cuboidal tissue located in the body?

A

kidney tubules

glandular ducts, eg saltatory glands

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12
Q

What is the structure of columnar tissue?

A

cells are elongated, column shaped

some have microvilli

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13
Q

What is the function of columnar tissue?

A

Microvilli increase surface are for absorption

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14
Q

Where is columnar tissue found in the body?

A

small intestine

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15
Q

What is the structure of ciliated columnar tissue?

A

cells are elongated, column shaped

cells have cilia

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16
Q

What is the function of ciliated columnar tissue?

A

The cilia waft to move dust and dirt out of air passage

17
Q

Where is ciliated cuboidal tissue found in the body?

A

trachea
bronchi
fallopian tubes

18
Q

What is the structure of glandular tissue?

A

secretory epithelial cells, secrete substances and organise themselves into gland shapes

19
Q

What is the function of glandular tissue?

A

secrete hormones, saliva and mucus

20
Q

Where is glandular tissue found in the body?

A

salivatory glands, pancreas

21
Q

What are some features of muscle tissue?

A

they can contract
inside the cells are protein fibres made of actin and myosin

22
Q

What are the 3 types of muscle tissue?

A

Skeletal muscle, smooth muscle, cardiac muscle

23
Q

What is the structure of skeletal muscle?

A

attached to bones
muscle cells are joined together to form fibres
the stripes are caused by overlapping protein molecules
voluntary

24
Q

What is the function of skeletal muscle?

A

moves bones
maintains posture and body position
supports soft tissue

25
Q

Where is skeletal tissue found in the body?

A

attached to the bone by tendons
generates locomotion in animals/mammals

26
Q

What is the structure of smooth muscle?

A

unstriated, individual cells that can shorten in length
cells do not have stripes
involuntary

27
Q

What is the function of smooth muscle?

A

rhythmic involuntary contraction, less powerful than skeletal

28
Q

Where is smooth muscle found in the body?

A

walls of hollow organs
walls of blood vessels
bladder
skin

29
Q

What is the structure of cardiac muscle?

A

cells have stripes
striated and branched fibres
cells are joined together by intercalated discs
involuntary

30
Q

What is the function of cardiac muscle?

A

rhythmic contractions to pump blood through the heart

31
Q

Where is cardiac muscle found in the body?

A

the heart

32
Q

What is the function of connective tissue?

A

connects, supports or separates tissues and organs

33
Q

What is the structure of connective tissue?

A

contains cells and elastic and collagen fibres in an extracellular fluid
between the fibres are fat storing cells and cells of the immune system

34
Q

What is an example of connective tissue?

A

blood, bone, tendon

35
Q

What is the function of nervous tissue?

A

generates and transmits electrical impulses, sensory input, control muscles and glands, homeostasis

36
Q

What is the structure of nervous tissue?

A

made of nerve cells called nephrons and glial cells

Biology- core concepts (3 decks)

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