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Comparative Anatomy 408 > Lab Exam 3: Cat Muscles > Flashcards

Lab Exam 3: Cat Muscles Flashcards

1
Q

What is 1?

A

Median Raphe

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2
Q

What is 2? origin, insertion, action?

A

-Digastric
Origin: From the mastoid and jugular processes
Insertion: Medial ventral border of the mandible
Action: Depresses the mandible

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3
Q

What is 1 and 4?

A

Mylohyoid

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4
Q

What is 9?

A

Serratus ventralis

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5
Q

What is 3?

A

Trapezius

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6
Q

What is 2?

A

Trapezius

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7
Q

What is 1?

A

Gastrocnemius

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8
Q

Which of these numbers are flexors?

A

3,4,6

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9
Q

Which is an extensor?

A

5

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10
Q

What are muscles 1 and 2 considered?

A

Hamstrings

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11
Q

What muscles are these?

A

Quadriceps

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12
Q

What is 11?

A

Sternohyoid

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13
Q

What is a 2? Origin, Insertion, action?

A

Longissimus Dorsi
Origin: From the ilium and spinous processes
Insertion: more anterior vertebrae
Action: Extends the vertebral column

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14
Q

What muscle is this? Origin, insertion, action

A

Temporalis
Origin: Most fibers originate from the temporal bone and a few from the zygomatic arch
Insertion: Coronoid process of the mandible
Action: Elevates mandible

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15
Q

What muscle is this?

A

Quadriceps

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16
Q

What is 1?

A

Digastric

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17
Q

What is 2?

A

Mylohyoid

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17
Q

What is 2? Origin, insertion, action

A

Gluteus Maximus
Origin: Last sacral and first caudal vertebrae
Insertion: femur
Action: Abducts the thigh

18
Q

Which are flexors?

A

5,8

18
Q

What is 6?

A

Rectus abdominis

19
Q

What is 6? origin, insertion, action?

A

Gastrocnemius
Origin: (1) Patella (2) femur
Insertion: Achilles tendon
Action: Extends the pes

20
Q

Which are extensors?

A

2,3,4

21
Q

What is 9? Origin, insertion, action

A

-Rectus Abdominis
-Origin: Pubis
Insertion: First and second costal cartilage and cranial end of sternum
Action: Compresses the abdominal region, pulls sternum and ribs caudally, causing flexion of the trunk

22
Q

What is 1?

A

Latissimus Dorsi

23
Q

What is 2? origin, insertion, action

A

Masseter
Origin: From the zygomatic arch
Insertion: Masseteric fossa and adjacent portions of the mandible
Action: Elevation of mandible

24
Q

Which are extensors?

A

3,4,5,7,9,14,16,18,19

25
Q

Which are flexors?

A

6,8,17

26
Q

What is 1?

A

Biceps

27
Q

What is 4? Origin, insertion, action

A

Latissimus dorsi
Origin: fourth or fifth thoracic to the sixth lumbar vertebrae
Insertion: humerus at the proximal end
Action: Pulls forelimb dorsocaudally

28
Q

What is 1?

A

Masseter

29
Q

What is 4? Origin, insertion, action

A

Serratus Ventralis
Origin: From the surface of the first 9 or 10 ribs and the transverse processes of the last five cervical vertebrae Insertion: Vertebral border of the scapula
Action: Draws the scapula toward the thoracic wall and helps to support the scapula

30
Q

What is 5?

A

Triceps

31
Q

What is 3? Origin, insertion, action

A

Mylohyoid
Origin: Medial surface of the mandible
Insertion: Median raphe
Action: Elevates the floor of the mouth

32
Q

What is 5? Origin, insertion, action

A

Sternohyoid
Origin: First costal cartilage Insertion: Hyoid bone
Action: Retracts the hyoid

33
Q

Biceps Femoris (OIA)

A

Subunit of Hamstrings

Origin: Ischial tuberosity
Insertion: Tibia and patella
Action: Abducts thigh and flexes the shank

34
Q

Rectus Femoris (OIA)

A

Subunit of Quadriceps

Origin: Ilium near the acetabulum
Insertion: In common with the vastus medialis and lateralis Action: Extends the shank

35
Q

Semimembranosus (OIA)

A

Subunit of hamstring

Origin: Ischial tuberosity and adjacent area of the ischium Insertion: Medial epicondyle of the femur and adjacent medial surface of the tibia
Action: Extends the thigh

36
Q

Semitendinosus (OIA)

A

Subunit of Hamstrings

Origin: Ischial tuberosity
Insertion: Tibia
Action: Flexes the shank

37
Q

Vastus Intermedius (OIA)

A

Subunit of Quadriceps

Origin: Femur
Insertion: In common with the other three members of this complex
Action: Extends the shank

38
Q

Vastus Lateralis (OIA)

A

Subunit of Quadriceps

39
Q

Vastus Medialis (OIA)

A

Subunit Quadriceps

Origin: Femur
Insertion: Crosses the patella and inserts by means of the patellar ligament on the tibial tuberosity
Action: Extends the shank

40
Q

What does the quadriceps include?

A

Rectus femoris
Vastus medialis
Vastus intermedius
Vastus lateralis

41
Q

What muscles does the hamstrings include?

A

Biceps Femoris
Semimembranosus
Semitendinosus

Comparative Anatomy 408 (10 decks)

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