A&P Review: The Skull Flashcards

Questions and Answers

What is the definition of the term 'ethmoid'?

Forehead bone

Superior and medial nasal conchae formed from its projections (correct)

Small U-shaped bone in neck, where many tongue muscles attach

Site of cribriform plate (correct)

What is the function of the cribriform plate in the ethmoid bone?

It is part of the skull that allows passage of olfactory nerves.

What does the term 'frontal' refer to?

Forehead bone

What is the significance of the hyoid bone?

It is a small U-shaped bone in the neck that serves as a base for tongue muscles. Signup and view all the answers

What is the function of the lacrimal bones?

They bear tear ducts. Signup and view all the answers

What does the term 'mandible' refer to?

Lower jaw Signup and view all the answers

Which bones are known to contain alveoli bearing teeth?

Maxilla Signup and view all the answers

What is the maxilla's role in the oral cavity?

It forms the anterior part of the hard palate. Signup and view all the answers

What is located at the most posterior part of the cranium?

Occipital bone Signup and view all the answers

Where do the condyles articulate with the atlas?

Occipital Signup and view all the answers

What is the function of the palatine bones?

They form the posterior bones of the hard palate. Signup and view all the answers

Match the following bones with their descriptions:

Sphenoid = Single, irregular, bat-shaped bone forming part of the cranial floor Temporal = Site of mastoid process Zygomatic = Cheekbone Nasal = Bridge of nose Signup and view all the answers

What connects to the nasal septum?

Ethmoid Signup and view all the answers

Study Notes

Ethmoid

Forms superior and medial nasal conchae through its projections.
Contains the cribriform plate, a crucial structure for olfactory functions.
Features an upward protrusion known as the crista galli, often referred to as the "cocks comb."

Frontal

Known as the forehead bone, pivotal in cranium structure.

Hyoid

A small U-shaped bone located in the neck.
Serves as an attachment point for many tongue muscles.

Lacrimal

Tiny bones that house the tear ducts essential for tear drainage.

Mandible

The lower jaw of the skull, essential for mastication.
Features the mental foramen, an important passage for nerves.

Maxilla

Forms the anterior part of the hard palate, contributing to oral cavity structure.

Nasal

Comprises the bridge of the nose, important for facial aesthetics and structure.

Occipital

Located at the most posterior part of the cranium, contributing to skull shape.
Contains condyles that articulate with the atlas, allowing head movement.
Houses the foramen magnum, a significant opening for the spinal cord.

Palatine

Consists of posterior bones of the hard palate, aiding in oral and nasal cavity separation.

Parietal

Makes up much of the lateral and superior aspects of the cranium.

Sphenoid

A unique, irregular bat-shaped bone forming part of the cranial floor.
Contains the sella turcica, a prominence that houses the pituitary gland.

Temporal

Features the mastoid process, important for muscle attachment.
Houses styloid processes, which serve as attachment points for ligaments and muscles.
Contains the middle ear, integral for auditory function.

Vomer

Forms a major part of the nasal septum, dividing the nasal cavity.

Zygomatic

Known as the cheekbone, contributing to facial contour and structure.

Paranasal Sinuses

Four bones: ethmoid, frontal, maxilla, and sphenoid contain paranasal sinuses, aiding in reducing skull weight and resonating voice.

Alveoli

Mandible and maxilla contain alveoli, which bear teeth, crucial for dentition and function.

Description

Test your knowledge of the human skull with this flashcard quiz focused on key bones and their features. Cover various terms like ethmoid, frontal, and hyoid bones to enhance your understanding of anatomy. Perfect for students preparing for anatomy and physiology exams.