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I.O.E Anatomy > Blood Supply > Flashcards

Blood Supply Flashcards

1
Q

Where does the common carotid bifurcate?

A

The level of the superior border of the thyroid cartilage

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2
Q

Common carotid artery splits into…

these supply?

A

external caroid artery (anterior) branches to the face

Internal carotid artery (posterior) goes into the skull to supply blood to the brain

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3
Q

Where does the dural venous sinus receive blood from?

A

The large veins that drain the brain

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4
Q

What type of haemorrhage do you get if the middle meningeal artery is ruptured at the pterion?

A

Extradural haemorrhage

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5
Q

What are the dural venous sinuses?

A

Endothelium-lined spaces between the periosteal and meningeal layers of the dura mater. They form the dura septae.

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6
Q

What can be found in the cavernous sinus?

A

Internal carotid artery Oculomotor nerve Trochlear n. Abducens n. Trigeminal n. - V1 and V2

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7
Q

Where do the branches of the internal carotid arise from and where do they go?

A

The brain , Internal carotid does not give off branches in the neck Enters skull through carotid canal Forms the circle of Willis

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8
Q

What is the main blood supply to the scalp?

A

Middle meningeal artery

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9
Q

How can infection of the scalp spread to the cranial cavity and affect the meninges?

A

Veins of the scalp connect to the diploic veins of the skull via several valveless emissary veins and therefore connect to the rural venous sinuses.

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10
Q

How can infection get to the dural venous sinuses?

A

From facial vein, to pterygoid plexus to the dural venous sinuses

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11
Q

What is in the carotid body?

A

Peripheral chemoreceptors for detection of arterial oxygen

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12
Q

Where do the deep facial veins drain into?

A

Pterygoid venous plexus

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13
Q

Brachionschphelic artery is……..

Then it divides into two

A

short

right common carotid artery, right subclavian artery

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14
Q

Artery and veins….

Veins tend to be more…..

A

run together

Superfical

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15
Q

Six branches of the external carotid and the terminal branches?

A

Superior thyroid, Ascending pharyngeal, Lingual ,Facial Occipital, Posterior auricular

Terminal branches: Maxillary Superficial temporal

Stop Alcohol Late Friday Or Puke More Saturday

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16
Q

Where can thrombophlebitis of the facial vein travel to?

A

This is an infected clot. To the intracranial venous system

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17
Q

Branches of the internal carotid that supply the scalp?

A

Ophthalmic branches to give: -Supra-orbital -Supra-trochlea

18
Q

Where do the vertebral arteries supply?

A

The brain along with the internal carotid arteries

19
Q

what 3 arteries does the curved aortic trunk give off?

A

1st. brachiocephalic trunk
2nd. left common carotid artery
3rd. left subclavian artery

20
Q

First brach of external carotid artery?

Name the branches?

where does it end?

A

superior thyroid artery

Lingual artery, facial artery, occiptal artery and maxillary artery

superifical temporal artery

21
Q

Carotid Sinus

A
  • baroreceptor (type of mechanoreceptor)
  • detects BP
  • info used to regulate heart rate
  • at very end of common carotid or very beginning of internal carotid
  • info goes to medulla
22
Q

What two structure do we find when the common carotid arterty splits?

why important

A

carotid sinus

Carotid body

find chemorecptors and baronrecptors (site in the body where the brain is samplying the blood composition and blood pressure, homeostatus control)

23
Q

Where is the cavernous sinus?

A

On the upper surface of the sphenoid bone

24
Q

Name the superficial arteries of the face

A

External carotid: -facial -superior and inferior labial -maxillary -lateral nasal -angular -transverse facial Internal carotid: -supratrochlear -supraorbital

25
Q

What is the carotid sinus?

A

Swelling in the region of the bifurcation

26
Q
A
27
Q

What does the facial vein communicate with at the medial angle of the eye and where does it drain to?

A

Superior ophthalmic Cavernous sinus

28
Q

Where do most of the veins of the face drain into?

A

Facial vein -> internal jugular vein

29
Q

internal jugular vein drains blood from…

into the..

this goes into the

This vein is longer on the …

when the two internal jugualr veins meet they form..

A

the brain

subclavian vein

Brachioschpalic vein

left

The superior vena cava

30
Q

What is in the cavernous sinus?

A

Thin-walled veins Internal carotid artery Cranial nerves -occulomotor -trochlear -abducent -trigeminal - ophthalmic and maxillary

31
Q

Where do some deep parts in the temporal region of the scalp drain into?

A

Pterygoid plexus

32
Q

What is a craniotomy and how is the blood supply preserved?

A

Allows access to the cranial cavity Bone and scalp flap are reflected inferiorly

33
Q

the maxiallry artery comes from the external carodtid artery and goes….

The maxillary artery gives of the …. it goes…

A

into the deep face

middle meningeal artery ….goes insde the skull

34
Q

What is the blood supply to the dura and the skull?

A

External carotid -> maxillary artery -> middle meningeal artery -> anterior and posterior branches

35
Q

Carotid Body

A
  • chemoreceptor
  • detect concentration of oxygen in blood
  • info used to regulate respiration rate
  • small red-ish, brown oval mass of tissue
  • info goes to medulla
36
Q

What is located in the carotid sinus?

A

Baroreceptors for detecting changes in arterial BP

37
Q

Name the dural venous sinuses

A

Sigmoid sinus Transverse sinus Superior saggital sinus Inferior saggital sinus Cavernous sinus

38
Q

Where does the sigmoid sinus go?

A

Continues as the internal jugular vein Exits via the jugular foramen

39
Q

Where do the vertebral arteries arise from?

A

The subclavian arteries

40
Q

Where do the vertebral arteries go?

A

Ascend though the transverse foramina in cervical vertebrae 6-1

I.O.E Anatomy (7 decks)

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