Session 1.3c - Pre-Reading (Venous Drainage of Head and Neck B)

Question 1

Many of the veins of the scalp and face are similar to the ________ supply of these structures, in _____ and ____.

Answer 1

Arterial, in route and name.

Question 2

Name some veins that drain the scalp

Answer 2

• Superficial temporal vein
• Supratrochlear vein
• Supraorbital veins
• Posterior occipital
• Posterior auricular

Question 3

Name two veins that drain the front of the scalp.

Answer 3

• Supratrochlear vein

- Supraorbital vein

Question 4

The supratrochlear and supraorbital vein ultimately join with which vein?

Answer 4

The facial vein

Question 5

Name two veins that drain the back (posterior) of the scalp.

Answer 5

• Posterior occipital

- Posterior auricular

Question 6

Which two veins join to make the external jugular vein?

Answer 6

Superficial temporal vein + Posterior auricular

Question 7

The superficial temporal vein and the posterior auricular vein join to make which vein?

Answer 7

The external jugular vein.

Question 8

Where does EJV lie?

Answer 8

This runs down the superficial cervical fascia of the neck (just beneath the layer of skin)

Question 9

The EJV runs down the neck how, to ultimately drain into which vein?

Answer 9

Runs laterally to ultimately drain into the subclavian vein.

Question 10

Which vein is most readily visible in a person’s neck?

Answer 10

External jugular vein

Question 11

Fig. 1

Label the:
- Superficial temporal vein
- External jugular vein
- Facial vein
- Posterior auricular vein
- Occipital vein
- Supratrochlear vein
- Supraorbital vein
(Bonus for other veins)

Answer 11

See image

Question 12

Fig. 2

Label the:

• Ear
• Sternocleidomastoid muscle
• Clavicle
• External jugular vein

Answer 12

SCM (arrows pointing left)
Clavicle (arrows pointing up)
EJV (arrows pointing right) (most visible vessel)

Question 13

Fig. 2

Which side of the neck is this showing?

Answer 13

Patient’s right

Question 14

Which vein is used to assess a patient’s venous pressure?

Answer 14

Internal jugular vein

Question 15

Where can you find the IJV?

Answer 15

Deep to SCM - it cannot be seen on surface anatomy; do not confuse EJV with IJV!

Question 16

Superficial veins (_____ __ ___ _____) relate to deeper venous structures (_____ ______ _______).

Answer 16

Veins of the scalp; dural venous sinuses.

Question 17

Fig. 3

What plane and orientation are we viewing this image in?

Answer 17

A coronal section of the scalp, looking at it straight on

Question 18

Name the 5 layers of the scalp.

Answer 18

• Skin
• Connective tissue (dense) with blood vessels (where we find our arteries and veins)
• Aponeurosis (galea aponeurotica)
• Loose areolar connective tissue (areolar tissue is a type of loose connective tissue)
• Periosteal layer of the bone

Question 19

What do we find beneath the bone of the skull?

Answer 19

The right and left hemispheres of the brain.

Question 20

What are the meninges?

Answer 20

The layer that covers the brain, including the dura.

Question 21

Fig. 3

Describe the journey of the dural venous sinus in the image.

Answer 21

In the middle (blue) is one of our dural venous sinuses; this one runs from the back of the skull to the front, between the right and left hemispheres of the brain.

Question 22

Where does the venous connection from the dural venous sinus lie?

Answer 22

Between the dense connective tissue layer of the scalp and the dural venous sinus.

Question 23

What are the veins between the dense CT of the scalp and the dural venous sinuses?

Answer 23

Emissary veins

Question 24

Fig. 3

Label the:

• 5 layers of the scalp
• Cranial dura (meninges)
• Dural venous sinus
• Emissary veins

Draw the:
- Right and left hemispheres of the brain

Answer 24

See image

Question 25

How do infections of the scalp travel extracranially to intracranially?

Answer 25

Infections that are relatively superficial, involving dense connective tissue (extracranial), could travel to the dural venous sinuses (intracranially), as a result of the emissary veins (venous connections).