Ventral Muscles

Question 1

2 Ventral Muscles in the frog head

(M, S)

Answer 1

Mylohyoid
Submentalis

Question 2

large transverse muscle on the ventral surface of the mouth floor

(M)

Answer 2

Mylohyoid

Question 3

mid-ventral connective tissue partition which divides the mylohyoid into left and right portions

(MR)

Answer 3

median raphe

Question 4

Mylohyoid Origin & Insertion

(CSM, MR)

Answer 4

Origin: central surface of the mandible

Insertion: median raphe

Question 5

Action of mylohyoid:

Elevates floor of mouth during _____ & _______

(B, R)

Answer 5

Breathing
Swallowing

Question 6

narrow muscle found in front of mylohyoid

(S)

Answer 6

submentalis

Question 7

Submentalis

Origin: (AELJ)
Insertion: (AAM)

Answer 7

Origin: Anterior edge of lower jaw

Insertion: Anterior angle of mandible

Question 8

Action of Submentalis

Elevates ____
Constricts ______

(MT, EN)

Answer 8

Elevates Mandible tip
Constricts external nares

Question 9

7 Muscles in the Upper Extremities (Ventral)

(AP, MP, PP, CP, SR, SH/D, TB)

Answer 9

Anterior Pectoralis
Middle Pectoralis
Posterior Pectoralis
Cutaneous Pectoralis
Sternoradialis
Scapulohumeralis (deltoid)
Triceps brachii

Question 10

Muscle which lies immediately posterior to sternoradialis and most anterior of the chest muscle

(AP)

Answer 10

Anterior pectoralis

Question 11

Anterior pectoralis lies

posterior to: (S)
anterior of: (CM)

Answer 11

-posterior to sternoradialis
-anterior of chest muscle

Question 12

To expose anterior pectoralis, turn left half of the _____

(CP)

Answer 12

cutaneous pectoralis

Question 13

Anterior pectoralis:

Origin: (E)
Insertion: (DR)

Answer 13

Origin: Epicoracoidea
Insertion: Deltoid Ridge

Question 14

Action of Anterior pectoralis:

Acts as _____ and _____ of arm.

(A, R)

Answer 14

-Adductor
-Rotator

Question 15

Muscle posterior to anterior pectoralis

(MP)

Answer 15

Middle Pectoralis

Question 16

Middle Pectoralis is posterior to

(AP)

Answer 16

Anterior pectoralis

Question 17

Middle Pectoralis:

Origin: (MS, XS)
Insertion: (VP of PE of H)

Answer 17

Middle Pectoralis:

Origin: Mesosternum, Xiphisternum
Insertion: Ventral Portion of Proximal End of Humerus

Question 18

Action of Middle pectoralis:

______ and ______ arm.

(A, R)
(similar with anterior pectoralis)

Answer 18

-adducts
-rotates

Question 19

Muscle lateral to middle pectoralis

(PP)

Answer 19

Posterior pectoralis

Question 20

Posterior pectoralis extends to almost the entire portion of the median surface of ______

(T)

Answer 20

Trunk

Question 21

Posterior pectoralis

Insertion: (DR)

Answer 21

Deltoid Ridge

Question 22

Dermal muscle prominent in toads, lies posterior to sternoradialis

(CP)

Answer 22

Cutaneous Pectoralis

Question 22

Sternoradialis

Origin: (E, O)
Insertion: (PE of R)

Answer 22

Sternoradialis

Origin: Episternum, Omosternum
Insertion: Proximal End of Radius

Question 22

Action of Anterior pectoralis:

Acts as _____ and _____ of arm.

(A, R)
(similar with anterior and middle pectoralis)

Answer 22

-Adductor
-Rotator

Question 22

Cutaneous Pectoralis Origin: (PP, AT of RA) Insertion: (S of PR)

Answer 22

Cutaneous Pectoralis Origin: Posterior Pectoralis, Anterior Third of Rectus Abdominis Insertion: Skin of Pectoral Region

Question 22

Action of Scapulohumeralis (Deltoid) Adductor and Protractor of _______ (FA)

Answer 22

Forearm

Question 22

Action of Cutaneous Pectoralis: Draws the _______ _________ (SC)

Answer 22

Skin Caudad

Question 23

Median pair of thick muscle partly covered by posterior border of mylohyoid (SR)

Answer 23

Sternoradialis

Question 23

What partly covers sternoradialis (PB of M)

Answer 23

Posterior Border of Mylohyoid

Question 23

Action of Sternoradiali

Answer 23

Forearm flexor

Question 23

Muscle which passes obliquely ventral to lateral part of sternoradialis

Answer 23

Scapulohumeralis or Deltoid

Question 23

Scapulohumeralis (Deltoid) Origin: S Insertion: DR

Answer 23

Scapulohumeralis (Deltoid) Origin: Scapula Insertion: Deltoid Ridge

Question 23

Triceps Brachii Origin: (SB, HS) Insertion: (PE of R-U)

Answer 23

Triceps Brachii Origin: Scapula Base Insertion: Posterior End of Radio Ulna

Question 23

Broad muscle on postero-lateral portion of upper arm, may be seen dorsally and ventrally, exterior of forearm (TB)

Answer 23

Triceps Brachii