Temporal process of the zygomatic bone. Posterior cranial fossa||. The middle cranial fossa lies slightly deeper than the anterior cranial fossa. The facial bones underlie the facial structures, form the nasal cavity, enclose the eyeballs, and support the teeth of the upper and lower jaws. Restaurant & Catering.
Superior orbital fissure—This large, irregular opening into the posterior orbit is located on the anterior wall of the middle cranial fossa, lateral to the optic canal and under the projecting margin of the lesser wing of the sphenoid bone. Foreign Labor Recruitment & Services. Large bony prominence on the inferior, lateral skull, just behind the earlobe. Each tooth is anchored into a deep socket called an alveolus. Fractures of the occipital bone at the base of the skull can occur in this manner, producing a basilar fracture that can damage the artery that passes through the carotid canal. As blood accumulates, it will put pressure on the brain. The lateral portions of the ethmoid bone are located between the orbit and upper nasal cavity, and thus form the lateral nasal cavity wall and a portion of the medial orbit wall. Jugular foramen—The opening in the temporal bone directly posterior to the carotid canal. Opening located on the anterior-lateral side of the mandibular body. Art-labeling activity external view of the skull is part. The crista galli ("rooster's comb or crest") is a small upward bony projection located at the midline. The frontal bone, the parietal bone, the greater wing of the sphenoid bone, and the squamous part of the temporal bone meet at the pterion, forming the floor of the temporal fossa. Fen Motor Maraamathukurun. These condyles form joints with the first cervical vertebra which allow for the nodding (as in agreement) motion of the head. The anterior skull has the orbits that house the eyeballs and associated muscles.
Shallowest and most anterior cranial fossa of the cranial base that extends from the frontal bone to the lesser wing of the sphenoid bone. Openings: foramen magnum, internal acoustic meatus, jugular foramen, anterior condylar (hypoglossal) canal. Small flap of bone located on the inner (medial) surface of mandibular ramus, next to the mandibular foramen. The temporal region is subdivided by the zygomatic arch into the temporal fossa and the infratemporal fossa. Art-labeling activity external view of the skull quizlet. Foramen magnum - brainstem. The broad U-shaped curve located between the coronoid and condylar processes is the mandibular notch. Important landmarks for the mandible include the following: - Alveolar process of the mandible—This is the upper border of the mandibular body and serves to anchor the lower teeth.
Zig-zag tunnel providing passage through the base of the skull for the internal carotid artery to the brain; begins anteromedial to the styloid process and terminates in the middle cranial cavity, near the posterior-lateral base of the sella turcica. Ear canal opening located on the lateral side of the skull. This irregular space may be divided at the midline into bilateral spaces, or these may be fused into a single sinus space. Carotid canal—This is the zig-zag passageway through which a major artery to the brain enters the skull. Art-labeling activity external view of the skull is a. This also allows mucus, secreted by the tissue lining the nasal cavity, to trap incoming dust, pollen, bacteria, and viruses. The right and left medial pterygoid plates form the posterior, lateral walls of the nasal cavity. The braincase consists of the skullcap ( calvarium) and the skull base. This cavity is bounded superiorly by the rounded top of the skull, which is called the calvaria (skullcap), and the lateral and posterior sides of the skull. Downward projecting, elongated bony process located on the inferior aspect of the skull.
The zygomatic arch (cheekbone) is the bony arch on the side of skull that spans from the area of the cheek to just above the ear canal. Announcements & Events. Slight depression of frontal bone, located at the midline between the eyebrows. It is located immediately next to the mandibular foramen, on the medial side of the ramus. Tuition & Personal Development. Mastering A&P Chapter 7 -The Skeleton Art-labeling Activity: Figure 7.5a (2 of 3) Diagram. From anterior to posterior, the fossae increase in depth. Oval depression located on the inferior surface of the skull. Other sets by this creator.
The squamous suture is located on the lateral skull. Opening located on inferior skull, between the styloid process and mastoid process. The nasal conchae are bony projections from the lateral walls of the nasal cavity. The sphenoid sinus is a single, midline sinus. The following videos, articles, and quizzes will cover everything you need to know about the temporal region of the skull, so make sure to check them out! Thus, to numb the lower teeth prior to dental work, the dentist must inject anesthesia into the lateral wall of the oral cavity at a point prior to where this sensory nerve enters the mandibular foramen.
The skull is the skeletal structure of the head that supports the face and protects the brain. Unpaired bone that forms the central base of skull. Bony structure that forms the roof of the mouth and floor of the nasal cavity, formed by the palatine process of the maxillary bones and the horizontal plate of the palatine bones. Just above the foramen lacerum, the carotid canal opens into the middle cranial cavity, near the posterior-lateral base of the sella turcica.