Lab Exam 3: Cat Muscles Flashcards
What is 1?
Median Raphe
What is 2? origin, insertion, action?
-Digastric
Origin: From the mastoid and jugular processes
Insertion: Medial ventral border of the mandible
Action: Depresses the mandible
What is 1 and 4?
Mylohyoid
What is 9?
Serratus ventralis
What is 3?
Trapezius
What is 2?
Trapezius
What is 1?
Gastrocnemius
Which of these numbers are flexors?
3,4,6
Which is an extensor?
5
What are muscles 1 and 2 considered?
Hamstrings
What muscles are these?
Quadriceps
What is 11?
Sternohyoid
What is a 2? Origin, Insertion, action?
Longissimus Dorsi
Origin: From the ilium and spinous processes
Insertion: more anterior vertebrae
Action: Extends the vertebral column
What muscle is this? Origin, insertion, action
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
What muscle is this?
Quadriceps
What is 1?
Digastric
What is 2?
Mylohyoid
What is 2? Origin, insertion, action
Gluteus Maximus
Origin: Last sacral and first caudal vertebrae
Insertion: femur
Action: Abducts the thigh
Which are flexors?
5,8
What is 6?
Rectus abdominis
What is 6? origin, insertion, action?
Gastrocnemius
Origin: (1) Patella (2) femur
Insertion: Achilles tendon
Action: Extends the pes
Which are extensors?
2,3,4
What is 9? Origin, insertion, action
-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
What is 1?
Latissimus Dorsi
What is 2? origin, insertion, action
Masseter
Origin: From the zygomatic arch
Insertion: Masseteric fossa and adjacent portions of the mandible
Action: Elevation of mandible
Which are extensors?
3,4,5,7,9,14,16,18,19
Which are flexors?
6,8,17
What is 1?
Biceps
What is 4? Origin, insertion, action
Latissimus dorsi
Origin: fourth or fifth thoracic to the sixth lumbar vertebrae
Insertion: humerus at the proximal end
Action: Pulls forelimb dorsocaudally
What is 1?
Masseter
What is 4? Origin, insertion, action
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
What is 5?
Triceps
What is 3? Origin, insertion, action
Mylohyoid
Origin: Medial surface of the mandible
Insertion: Median raphe
Action: Elevates the floor of the mouth
What is 5? Origin, insertion, action
Sternohyoid
Origin: First costal cartilage Insertion: Hyoid bone
Action: Retracts the hyoid
Biceps Femoris (OIA)
Subunit of Hamstrings
Origin: Ischial tuberosity
Insertion: Tibia and patella
Action: Abducts thigh and flexes the shank
Rectus Femoris (OIA)
Subunit of Quadriceps
Origin: Ilium near the acetabulum
Insertion: In common with the vastus medialis and lateralis Action: Extends the shank
Semimembranosus (OIA)
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
Semitendinosus (OIA)
Subunit of Hamstrings
Origin: Ischial tuberosity
Insertion: Tibia
Action: Flexes the shank
Vastus Intermedius (OIA)
Subunit of Quadriceps
Origin: Femur
Insertion: In common with the other three members of this complex
Action: Extends the shank
Vastus Lateralis (OIA)
Subunit of Quadriceps
Vastus Medialis (OIA)
Subunit Quadriceps
Origin: Femur
Insertion: Crosses the patella and inserts by means of the patellar ligament on the tibial tuberosity
Action: Extends the shank
What does the quadriceps include?
Rectus femoris
Vastus medialis
Vastus intermedius
Vastus lateralis
What muscles does the hamstrings include?
Biceps Femoris
Semimembranosus
Semitendinosus
