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Semester 3 (M+M) > Anatomy > Flashcards

Flashcards in Anatomy Deck (98)
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1

What are the layers of the Dura Mater?

Periosteal (outer) and meningeal (inner)
Only has two layers in cranium, in the spine on the meningeal layer is present

2

What are dural reflections?

Reflections of the meningeal dura from the periosteal dura to form dural sheets which seperate brain regions from each other, they prevent rotation of the brain within the cranial cavity

3

What is the name of the infolding of dura mater which seperates the cerebrum and the cerebellum?

Tentorium cerebelli

4

Name the 5 layers of the scalp

1- Skin
2- Connective tissue
3- Aponeurosis (frontalis to occipitalis)
4- Loose areolar connective tissue (Danger- Infection can spread via emissary veins into cranium)
5- Pericranium

5

What are the ant and post borders of the parotid gland, where does it enter the oral cavity?

Ant- Mandible ramus and mastoid process
Post- Sternocleidomastoid
Into oral cavity- Parotid duct through buccinator

6

Which nerve splits into its branches in the parotid gland, what are the names of these brances? (5)

Facial Nerve
Branches: Temporal Zygomatic Buccal Mandibular Cervical

7

What provides autonomic supply to the parotid gland?

PNS- Glossopharyngeal nerve = Increased salivation
SNS- Cervical nerves = Decreased salivation

8

What is the action of the occipitofrontalis muscle?

Raises eyebrows and wrinkles forhead

9

What is the action of the orbicularis oculi muscle? What nerve supplies it?

Scrunches the eyes (temporal branch of CNVII)

10

What is the action of the levator palpabrae superioris muscle, what nerve supplies it?

Raises eyelid (occulomotor nerve)

11

What is the action of the orbicularis oris muscle, what nerve supplies it?

Puckers lips (buccal branch of CNVII)

12

What is the action of the zygomaticus major muscle, what nerve supplies it?

Raises corner of mouth- smile (Zygomatic branch CNVII)

13

What is the action of the zygomaticus minor muscle, what nerve supplies it?

Elevates upper lip (Buccal branch of CNVII)

14

What is the action of the platysma muscle, what nerve supplies it?

Draws corner of mouth inferiorly and wrinkles skin of neck (Cervical branch of CNVII)
(Runs over sternocleidomastoid)

15

What are the 4 muscles of mastication and what nerve innervates them?

Temporalis, Masseter, Medial/ Lateral Pterygoids (Mandibular Branch of Trigeminal CN V)

16

What is the origin, insertion, action and innervation of the temporalis muscle?

O: Temporal line on parietal bone
I: Coronoid process of mandible
A: Elevates and retracts mandible
N: Mandibular branch of CN V

17

What is the origin, insertion, action and innervation of the masseter muscle?

O: Zygomatic arch and maxilla
I: Coronoid procress and ramus of mandible
A: Elevates mandible
N: Mandibular branch of CN V

18

What is the origin, insertion, action and innervation of the medial pterygoid muscle?

O: (Deep head)- Lateral pterygoid plate (Super head)- Pyramidal process of palatine bone
I: Medial angle of mandible
A: Elevates mandible
N: Mandibular branch of CN V

19

What is the origin, insertion, action and innervation of the lateral pterygoid muscle?

O: Greater wing of sphenoid
I: Condyloid process of mandible
A: Depresses, protracts and laterally moves mandible
N: Mandibular branch of CN V

20

Which muscle of mastication depresses, protracts and laterally moves the jaw?

Lateral pterygoid

21

Name two proximal tributaries of the femoral vein

Great saphernous and deep femoral veins

22

What are the boundaries of the femoral triangle?

Sup: Inguinal ligament
Med: Adductor longus
Lat: Sartorius

23

What are the contents of the femoral triangle?

Femoral art/vein/nerve/sheath
Inguinal LN's

24

What is the action of the quadriceps muscle?
Which muscles contribute to it?
Which nerve supplies it?

The great extensor of the knee
Rectus femoris + 3 vastus muscles (lat/med/intermed)
Femoral nerve
Do not confuse with quadratus femoris (on post thigh)

25

What nerve supplies the anterior compartment of the thigh?

Femoral nerve (from lumbar plexus L2 to L4)

26

What nerve supplies the posterior compartment of the thigh?

Sciatic nerve (tibial part except biceps short head which is common fibular part)

27

What nerve supplies the medial compartment of the thigh?

Obturator nerve (from Lumbar plexus L2 to L4)

28

What is the adductor canal?

A a tunnel in the middle thigh which runs from the apex of the femoral triangle, to the adductor hiatus in the adductor magnus muscle. It is bounded by sartorius (ant), vastus medialis (lat) and the adductors (post/med)

29

What is the hamstring?

Made up of 5 muscles/ tendons:
Biceps femoris (long and short head), semimembranous, semitendinosus and a portion of adductor magnus

30

What is the medical name for the hip?

Coxa