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Mesa Community College BIO 160 > Lab 6 Skeletal Muscles > Flashcards

Lab 6 Skeletal Muscles Flashcards

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Biology 101 flashcards
1
Q

Tendon

A

Connects muscle to bone

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2
Q

Ligament

A

Hold bone to bone together

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3
Q

Epimysium

A

Connective tissue of the muscle, elastic, surrounding muscle.

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4
Q

Perimysium

A

Connective tissue of the muscle, elastic, surrounding bundle of muscle fibers.

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5
Q

Fascicle

A

Bundle of muscle fibers, wrapeed in perimysium.

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6
Q

Muscle

A

Soft tissue, contains protein filaments of actin and myosin, wrapped in epimysium.

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7
Q

Fiber

A

Are cylindrical and have more than one nucleus. They also have multiple mitochondria to meet energy needs. Muscle fibers are in turn composed of myofibrils.

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8
Q

Myocyte

A

long, tubular cells that develop from myoblasts to form muscles in a process known as myogenesis. Muscle cells.

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9
Q

Sarcolemma

A

Muscle cell membrane

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10
Q

Nucleus

A

Forming the basis for cells activity and growth.

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11
Q

Myofibril

A

Elongated contractile threads found in striated muscle cells

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12
Q

Actin

A

Multi-functional proteins that form microfilaments.

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13
Q

Sarcoplasmic reticulum

A

Membrane-bound structure found within muscle cells that is similar to the endoplasmic reticulum in other cells

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14
Q

T-Tubules

A

Extensions of the cell membrane that penetrate into the centre of skeletal and cardiac muscle cells

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15
Q

Mitochondria

A

organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur.

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16
Q

Myosin

A

a fibrous protein that forms (together with actin) the contractile filaments of muscle cells and is also involved in motion in other types of cells.

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17
Q

Masseter

A

Jaw muscle, chewing

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18
Q

Frontalis

A

Forehead muscle, elevates eyebrow

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19
Q

Sternocleidomastoid

A

base of ear to clavicle, rotate and flex the head

20
Q

Zygomaticus major

A

from cheekbone to corner of mouth, to raise corner of mouth.

21
Q

Orbicularis oris

A

circular muscle around the mouth, close the mouth

22
Q

Orbicularis oculi

A

Circular muscle around the eye, close eye

23
Q

Rectus abdominis

A

“ABS”, flex and compress torso

24
Q

Rectus Sheath

A

Thin covering of rectus abdominis

25
Q

External oblique

A

Muscle on lateral sides of torso, flex and rotate vertebral column, compress abdomen

26
Q

Serratus anterior

A

On the 1st-8th ribs, protract the scapula

27
Q

Pectoralis major

A

Chest muscles, flex, extend and adduct the arm

28
Q

Trapezius

A

Back/shoulder muscle alond spine, retract, elevate and depress the scapulae.

29
Q

Latissimus dorsi

A

Back of ribs to lower back, extend the arm, adduct the arm

30
Q

Deltoid

A

Tops of shoulders, flex, extend and abduct the arm

31
Q

Biceps brachii

A

Tops of arm, flex arm and forearm

32
Q

Triceps Brachii

A

Back of arm, extend arm and forearm

33
Q

Intercostals

A

Muscles in between ribs

34
Q

Sartorious

A

wraps around the front of leg, flex thigh and leg

35
Q

rectus femoris

A

top of femur, flex thigh and extend leg

36
Q

Vastus lateralis

A

lateral side of femur, extend leg

37
Q

Vastus intermedius

A

deep top of femur, extend leg

38
Q

Gracilis

A

Medial along femur Adduct the thigh

Flex the leg

39
Q

Gluteus maximus

A

butt muscle Extend thigh
Abduct thigh
Lateral rotation of thigh

40
Q

Adductor magnus

A

groin muscle Adduct thigh

Extend thigh

41
Q

Biceps femoris

A

starts in the back of the leg and wraps towards the front Extend thigh
Flex leg

42
Q

Semitendinosus

A

runs medially on the back of the femur
Extend thigh
Flex leg

43
Q

Semimembranosus

A

behind the knee
Extend thigh
Flex leg

44
Q

Gastrocnemius

A

lateral muscle behind tibula Plantarflexion

45
Q

Soleus

A

laterally behind shin Plantarflexion

Mesa Community College BIO 160 (4 decks)

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