Bones of the Head (Skull) Flashcards Preview

Anatomy 101 - Ivy Tech > Bones of the Head (Skull) > Flashcards

Flashcards in Bones of the Head (Skull) Deck (45)
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1
Q

Frontal Bone

A

The frontal bone forms the front portion of the skull above the eyes and includes the forehead, the roof of the nasal cavity, and the roofs of the orbits (bony sockets) of the eyes.

2
Q

Supra-orbital Margin

A

Part of the Frontal bone of the skull. This is the superiorly arched margin of bone forming the superior border of the orbit. The upper curve of the bones that make up the eye socket

3
Q

Glabella

A

The smooth area between the eyebrows just above the nose.

4
Q

Coronal Suture

A

A seam extending across the skull where the frontal bone and the parietal bones meet.

5
Q

Parietal Bones

A

Either of two large, irregularly quadrilateral bones between the frontal and occipital bones that together form the sides and top of the skull.

6
Q

Sagital Suture

A

A serrated line on the top of the skull that marks the junction of the two parietal bones

7
Q

Squamous suture

A

The squamous suture is the connecting joint in the skull between the parietal bone and the lower portion of the temporal bone called the par squamosa

8
Q

Occipital Bone

A

A curved, compound bone forming the back and part of the base of the skull.

9
Q

External Occipital protuberance

A

Near the middle of the occipital squama is the external occipital protuberance

10
Q

Foramen Magnum

A

the large opening at the base of the skull through which the spinal cord passes

11
Q

occipital condyles

A

Your occipital condyles are two bony surfaces at the base of your skull. This is where your skull meets the first bone (vertebra) of your spine. Wings in front of the Foramen Magnum

12
Q

Lambdoid suture

A

) is a dense, fibrous connective tissue joint on the posterior aspect of the skull that connects the parietal bones with the occipital bone.

13
Q

Temporal Bone

A

The temporal bones are situated at the sides and base of the skull, and lateral to the temporal lobes of the cerebrum.

The temporal bone supports that part of the face known as the temple and houses the structures of the organ of hearing

14
Q

Mastoid Process

A

a conical prominence projecting from the undersurface of the mastoid portion of the temporal bone. It is located just behind the external acoustic meatus

15
Q

External acoustic meatus

A

is a tube running from the outer ear to the middle ear. The adult human ear canal

16
Q

Zygomatic Arch

A

or cheek bone is formed by the zygomatic process of temporal bone (a bone extending forward from the side of the skull, over the opening of the ear) and the temporal process of the zygomatic bone (the side of the cheekbone),

17
Q

Styloid Process

A

slender pointed piece of bone just below the ear. It projects down and forward from the inferior surface of the temporal bone

18
Q

Jugular foramen

A

The jugular foramen is a large aperture in the base of the skull. It is located behind the carotid canal and is formed in front by the petrous portion of the temporal, and behind by the occipital; it is generally larger on the right than on the left side.

19
Q

Mandibular Fossa

A

The mandibular fossa is the depression in the temporal bone that articulates with the mandibular condyle. under where the Zygomatic arch attaches to the temporal bone.

20
Q

Petrous

A

The petrous portion of the temporal bone or pyramid is pyramidal and is wedged in at the base of the skull between the sphenoid and occipital bones

21
Q

Zygomatic Bone

A

is situated at the upper and lateral part of the face and forms the prominence of the cheek, part of the lateral wall and floor of the orbit

22
Q

Maxilla

A

Upper Jaw Bone

23
Q

Alveolar Margin

A

denoting the part of the jawbone containing the roots of the teeth Both in the Maxilla and Mandible

24
Q

Palatine Process

A

, is a thick, horizontal process of the maxilla. It forms the anterior three-fourths of the hard palate, the horizontal plate of the palatine bone making up the rest

25
Q

inferior nasal concha

A

It extends horizontally along the lateral wall of the nasal cavity [Fig. 1] and consists of a lamina of spongy bone, curled upon itself like a scroll

26
Q

Palatine Bone

A

aired bones of the skull that are situated at the back part of the nasal cavity between the maxilla and the pterygoid process of the sphenoid. Looking at the upper jaw makes up 25% of hard palate. Located behind Palatine Process

27
Q

Vomer

A

vomer forms the posterior part of the nasal septum, with the anterior part formed by the ethmoid.

28
Q

Lacrimal Bone

A

, the smallest and most fragile bone of the face, is situated at the front part of the medial wall of the orbit

29
Q

Nasalacrimal Canal

A

The canal containing the nasolacrimal duct is called the nasolacrimal canal.

It is formed by indentations in the inferior nasal conchae, maxilla and lacrimal bone

30
Q

Sphenoid Bone

A

cranial bone situated at the front middle of the skull in front of the temporal bone and basilar part of the occipital bone. The sphenoid bone is one of the seven bones that articulate to form the orbit

31
Q

Optic Foramen

A

The optic foramen is the opening to the optic canal.

32
Q

Sella Turcica

A

is a saddle-shaped depression in the sphenoid bone of the human skull

33
Q

Ethmoid bone

A

s a bone in the skull that separates the nasal cavity from the brain. It is located at the roof of the nose, between the two orbits. The cubical bone is lightweight due to a spongy construction. The ethmoid bone is one of the bones that makes up the orbit of the eye.

34
Q

Cribriform Plate

A

The cribriform plate of the ethmoid bone (horizontal lamina) is received into the ethmoidal notch of the frontal bone and roofs in the nasal cavities.

35
Q

Crista Galli

A

he crista galli (Latin: “crest of the cock”) is a median ridge of bone that projects from the cribriform plate of the ethmoid bone.

36
Q

Perpendicular Plate (ethmoid)

A

a thin, flattened lamina, polygonal in form, which descends from the under surface of the cribriform plate, and assists in forming the septum of the nose;

37
Q

Middle Nasal Concha

A

the lower of two bony plates projecting from the inner wall of the ethmoid labyrinth

38
Q

Mandible

A

lower jawbone

39
Q

Body of Mandible

A

curved somewhat like a horseshoe the part of the Mandible that contains the teeth

40
Q

Mental Foramen

A

ne of two holes (“foramina”) located on the anterior surface of the mandible. Two holes located on either side of the front of the mandible

41
Q

Angle of Mandible

A

located at the posterior border at the junction of the lower border of the ramus of the mandible. Back of the lower jaw where it curve toward the ear.

42
Q

Ramus of the Mandible

A

a broad quadrilateral part of the mandible projecting upward from the posterior end of the body behind the lower teeth. line of the back of the jaw starting from the ramus

43
Q

Coronoid process

A

The triangular anterior process of the mandibular ramus, giving attachment to the temporal muscle.

44
Q

Mandibular Condyle

A

the condyle of the ramus of the mandible that joins with the skull

45
Q

paranasal sinuses

A

group of four paired air-filled spaces that surround the nasal cavity (maxillary sinuses), above the eyes (frontal sinuses), between the eyes (ethmoidal sinuses), and behind the ethmoids (sphenoidal sinuses). The sinuses are named for the facial bones in which they are located.