Human Anatomy and Physiology : Gross Anatomy

Study concepts, example questions & explanations for Human Anatomy and Physiology

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Example Questions

Example Question #1 : Identifying Bones Of The Skull

Which of the bones of the skull forms most of the superior and lateral faces of the cranium?

Possible Answers:

Occipital

Maxilla

Temporal

 Parietal

Frontal

Correct answer:

 Parietal

Explanation:

The parietal bones (one on each side of the skull) form a shield-shaped dome across the top of the skull, creating most of the bulging sides and top of the cranium. The parietal bones are useful in distinguishing the skulls of modern man from Australopithecine ancestors. The bone has a large opening, the parietal foramen, through which blood supply and nerves enter.

Example Question #1 : Identifying Bones Of The Skull

Which bone of the skull forms most of the inferior and posterior faces of the skull?

Possible Answers:

Maxilla

Temporal

Occipital

Parietal

Frontal

Correct answer:

Occipital

Explanation:

The occipital bone forms the base of the skull, and contains the opening (foramen magnum) through which the thick nerve fibers that will form the spinal cord emerge. It houses the occipital lobe of the cerebrum, which is responsible for visual processing and holds the visual cortex.

Example Question #4 : Identifying Bones Of The Skull

Which of the bones of the skull contains the openings and forms the anchors for the ears and jaw?

Possible Answers:

Occipital bone

Maxilla

Parietal bone

Frontal bone

Temporal bone

Correct answer:

Temporal bone

Explanation:

The temporal bones (one on each side) form the mandibular fossae, which join the mandible to stabilize the jaw. The bone also forms part of the prominence of the cheek, the meatus for neck and tongue muscles, and contains the gap through which the ear is formed.

Example Question #2 : Identifying Bones Of The Skull

Which bone of the skull forms the anterior covering for the brain, sinus cavities, and may contain a supraorbital notch?

Possible Answers:

Parietal bone

Frontal bone

Temporal bone

Maxilla

Occipital bone

Correct answer:

Frontal bone

Explanation:

The frontal bone forms the "forehead" and anterior part of the superior skull. It contains the roof of the nasal cavity, the roof of the orbital sockets, and in some skeletons shows a bony notch or supraforamen.

Example Question #341 : Gross Anatomy

The lambdoid suture lies between the __________ and the __________ bones.

Possible Answers:

parietal . . . temporal

parietal . . . occipital

frontal . . . temporal

frontal . . . occipital

frontal . . . parietal

Correct answer:

parietal . . . occipital

Explanation:

The lambdoid suture is located at the junction of the parietal and occipital bones. It lies just inferior the parietal bones and superior the occipital bone. It is located on the posterior or "back" of the skull.

Example Question #342 : Human Anatomy And Physiology

Foramen rotundum is a part of which bone?

Possible Answers:

Temporal

Parietal

Sphenoid

Ethmoid

Zygomatic

Correct answer:

Sphenoid

Explanation:

The sphenoid bone contains important openings through which specific nerves pass, including foramen rotundum, foramen spinosum, and foramen ovale.

Example Question #342 : Gross Anatomy

The hard palate is comprised of the __________ and __________ bones.

Possible Answers:

frontal . . . palatine

zygomatic . . . maxillary

parietal . . . maxillary

maxillary . . . palatine

ethmoid . . . palatine

Correct answer:

maxillary . . . palatine

Explanation:

The hard palate is comprised of the maxillary and palatine bones. The anterior two-thirds is the palatine process of the maxillary bone, while the posterior one third is the horizontal plate of the palatine bone

Example Question #343 : Gross Anatomy

The squamosal suture is found between which two bones?

Possible Answers:

Occipital and parietal

Occipital and temporal

Frontal and parietal

Parietal and temporal

Frontal and temporal

Correct answer:

Parietal and temporal

Explanation:

The squamosal suture is located where the parietal and temporal bones meet on the lateral side of the skull. 

Example Question #343 : Gross Anatomy

Which of the following bones are not a part of the neurocranium?

Possible Answers:

Vomer

Frontal bone

Temporal bones

Occipital bone

Parietal bones

Correct answer:

Vomer

Explanation:

The neurocranium is the part of the skull that forms a protective covering around the brain. The other part of the skull is the facial skeleton, which forms the bones of the face. The vomer bone is not part of the neurocranium, rather it forms the inferior part of the nasal septum. 

Example Question #345 : Human Anatomy And Physiology

Which of the following structures are not found on the ethmoid bone?

Possible Answers:

Mastoid process

Middle nasal concha

Crista galli

Cribriform plate

Perpendicular plate

Correct answer:

Mastoid process

Explanation:

All answer choices are found on the ethmoid bone, except for the mastoid process, which is found on the temporal bone.

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