25 Questions
What is the name of the long narrow tube that connects the third ventricle with the fourth ventricle?
cerebral aqueduct
Which ventricles are connected by the cerebral aqueduct?
Third and fourth ventricles
What is the shape of the structure that connects the third and fourth ventricles?
Narrow and long
What is the function of the cerebral aqueduct?
To connect the third and fourth ventricles
Where is the cerebral aqueduct located?
In the brain
Which bone is NOT part of the formation of each orbit's wall?
Occipital bone
How many bones are involved in forming the walls of each orbit?
7
Which of the following bones is NOT paired with the maxillary bone in forming the orbit's wall?
Mandible bone
What is the name of the bone that is paired with the frontal bone in forming the orbit's wall?
Zygomatic bone
What is the term for a fold in the brain?
Gyrus
Which of the following bones is part of the formation of the orbit's wall?
Lacrimal bone
What is the term for the valley between folds in the brain?
Sulcus
What is the function of ventricles in the brain?
To store and circulate cerebrospinal fluid
What is cerebrospinal fluid?
A fluid that circulates through the ventricles
What is the purpose of the hollow fluid-filled cavities in the brain?
To circulate cerebrospinal fluid
How many bones are in the skeleton of the face?
14
What is the Mandible bone in the face?
The strongest bone
Which of the following bones is NOT part of the facial bones?
Femur
What is the function of the Mandible bone?
To form the jaw
What is the study of the structure of the facial bones?
Anatomy
What is the name given to the air-filled sinuses that cluster around the nasal cavity?
Paranasal sinuses
What is the shape of the bony cavities that hold the eyes?
Cone-shaped
What is contained within the orbits?
The eyes, muscles, fat, and tear-producing glands
What type of glands are found in the orbits?
Tear-producing glands
What type of tissue is found in the orbits, aside from the eyes?
Fat tissue
Study Notes
Brain Structure
- Folds in the brain are called gyri, and the valleys between them are called sulci.
- The brain has hollow fluid-filled cavities called ventricles.
- The third ventricle connects with the fourth ventricle through a long narrow tube called the cerebral aqueduct.
Orbit Bones
- The walls of each orbit are formed by parts of seven bones: frontal, sphenoid, zygomatic, maxillary, palatine, lacrimal, and ethmoid bones.
- The orbits are cone-shaped bony cavities that hold:
- The eyes
- The muscles that move the eyes
- Fat
- The tear-producing glands
Facial Bones
- The skeleton of the face consists of 14 bones.
- The mandible is the largest, strongest bone in the face.
Paranasal Sinuses
- The air-filled sinuses are called paranasal sinuses because they cluster around the nasal cavity.
Learn about the structure of the brain, including ventricles, cerebrospinal fluid, folds, and valleys. Discover the key features of the brain's anatomy.
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