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Gross anatomy Block 3 > Lecture 1 Head and Neck > Flashcards

Lecture 1 Head and Neck Flashcards

1
Q

<p>What is the head divided into?</p>

A

<p>Cranium (Brain Case) and face

| the head houses the brain and major sense organs</p>

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2
Q

<p>Neck is </p>

A

<p>is a conduit for important structures of respiratory and alimentary systems. Carries the blood supply to and from the head.
And is also the embryological source of upper limbs. </p>

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3
Q

what are the two major divisions of the skull

A

Neurocranium: Surrounds the brain.
viscerocranium: Forms the face and surrounds oral cavity, pharynx and upper respiratory tract.

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4
Q

What are the two parts of the neurocranium:

A

Chondrocranium and Dermatocranium

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5
Q

CNI

  • Special sense, General sensory or Motor?
  • Skull aperature exits/ enters cranial cavity?
  • General area supplied?
A

Olfactory nerve supplies the nasal cavity and is found in the cribriform plate. it has a special sense (Smell)

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6
Q

CNII

  • Special sense, General sensory or Motor?
  • Skull aperture exits/ enters cranial cavity?
  • General area supplied?
A

The optic nerve is a special sense nerve. exits through the optic foramen. Supplies the Orbit area.

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7
Q

CNIII

  • Special sense, General sensory or Motor?
  • Skull aperture exits/ enters cranial cavity?
  • General area supplied?
A

The oculomotor nerve is a motor nerve. exists through the superior orbital fissure. supplies the orbit area.

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8
Q

CNIV

  • Special sense, General sensory or Motor?
  • Skull aperture exits/ enters cranial cavity?
  • General area supplied?
A

The trochlear is a motor nerve. It exits through the superior orbital fissure. supplies the orbit.

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9
Q

CNV

  • Special sense, General sensory or Motor?
  • Skull aperture exits/ enters cranial cavity?
  • General area supplied?
A

The trigeminal nerve is both general sensory nerve and motor nerve. V1 exits through the superior orbital fissure.
The V2 exits through foramen rotundum and V3 exits through foramen ovale.
It supplies the first pharyngeal arch derivatives: the face, Jaws, oral and nasal cavity.

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10
Q

CNVI

  • Special sense, General sensory or Motor?
  • Skull aperture exits/ enters cranial cavity?
  • General area supplied?
A

The abducens nerve is a motor nerve that exits through the superior orbital fissure. it generally supplies the orbit area as well.

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11
Q

CN VII

  • Special sense, General sensory or Motor?
  • Skull aperture exits/ enters cranial cavity?
  • General area supplied?
A

Facial nerve. Its a special sensory nerve, general sensory and a motor nerve. It exits through the internal auditory meatus. It supplies the second pharyngeal arch derivatives: The face and the oral cavity.

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12
Q

CN VIII

  • Special sense, General sensory or Motor?
  • Skull aperture exits/ enters cranial cavity?
  • General area supplied?
A

Vestibulocochlear is a special sense nerve. it is located in the internal auditory meatus. supplies the inner ear vestibular apparatus.

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13
Q

CN IX

  • Special sense, General sensory or Motor?
  • Skull aperture exits/ enters cranial cavity?
  • General area supplied?
A

Glossopharyngeal nerve like the facial is all three special sense, general sensory and a motor nerve. it exits through the jugular foramen. Supplies the 3rd Pharangeal arch derivatives: Parotid gland and pharynx.

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14
Q

CNX

  • Special sense, General sensory or Motor?
  • Skull aperture exits/ enters cranial cavity?
  • General area supplied?
A

The Vagus nerve is also an all in one nerve like CN IX and CN VII. It exits through the jugular foramen. It supplies the 4th-6th arch derivatives. Including pharynx, heart, and lungs.

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15
Q

CN XI

  • Special sense, General sensory or Motor?
  • Skull aperture exits/ enters cranial cavity?
  • General area supplied?
A

The spinal accessory nerve is a motor nerve. It exits through the jugular foramen, and it supplies the neck.

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16
Q

CN XII

  • Special sense, General sensory or Motor?
  • Skull aperture exits/ enters cranial cavity?
  • General area supplied?
A

The hypoglossal nerve is a motor nerve that exits through the hypoglossal canal and it supplies the tongue.

17
Q

The Chondrocranium consists of Anterior to posterior:

A
  • Ethmoid bone
  • Lesser wing of sphenoid bone
  • greater wing and body of the sphenoid bone
  • Petrous part of temporal bone
  • Base of Occipital bone
18
Q

The Dermatocranium which is also called the membranous neurocranium Consists of

A

It consists of bones formed via discrete centers of ossification in the mesenchyme (Embryonic connective tissue). This includes:

  • Paired frontal bones (Anterior fontanelle which closes middle of the second year)
  • Paired parietal bones (Posterior Fontanelle which closes at about 3 months of age)
  • Occipital bone superior to nuchal line
  • Zygomatic Bone
  • Nasal bone
  • Maxilla bone

Gross anatomy Block 3 (9 decks)

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