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Skeleton System 1
Fundamentals of Body Structures
Question | Answer |
---|---|
The skeleton has five general functions 1. It supports and stabilizes surrounding tissue such as? | muscles, blood vessels, nerves, adipose tissue and skin. |
2. It protects vital organs of the body such as the? | brain, spinal cord, heart, and lungs. |
3. It assists in body movement (locomotion) by? | providing attachments for muscles that pull on the bones that act as levers. |
4. The bone marrow manufactures blood cells called? | hematopoiesis. |
5. It is a storage area for fat and mineral salts, especially? | phosphorus (P) and calcium (Ca). |
Located at the ends of the long bones and the center of all others is a mesh-work of interconnecting sections called? | cancellous (spongy) bone. |
Yellow bone marrow is primarily made up of? | fat cells (adipose tissue). |
The shaft of the long bones is called the? | diaphysis. |
The two extremities of the long bones are called the? | epiphyses. |
The epiphyses are the section of the long bones that? | grow vertically (growth plates). |
A fibrovascular membrane that covers a bone is called the? | periosteum. |
The tissue found between articulating bones that acts as a shock absorber and reduces friction is called? | cartilage. |
Cartilage can also be referred to as a? | meniscus. |
The tissue that binds articulating bones together and allows a certain range of movement (ROM) is called? | ligaments. |
The tissue that connects a muscle to a bone is called a? | tendon. |
The formation of bone is called? | ossification. |
Bone cells are called? | osteocytes. |
Osteocytes are classified as? | 1. Osteoblasts which will build bone. 2. Osteoclasts which will remove (reabsorb) bone. |
What is required for osteoblasts to function? | Weight (WT) bearing. |
What is required for the osteoclasts to function? | Nothing. |
Bones whose length exceeds their width are called? | long bones. |
Examples of long bones include: 1. Two clavicles AKA? | collar bones. |
2. Two humeri AKA? | superior arm bones. |
3. Two radii AKA? | lateral inferior arm bones. |
4. Two ulnae AKA? | medial inferior arm bones. |
The proximal portion of each ulna is called the? | olecranon (elbow). |
Two femurs AKA? | thigh bones (superior legs). |
Two tibiae AKA? | anterior inferior larger leg bones (shins). |
Two fibulae AKA? | posterior inferior leg bones ("little fibs"). |
Ten metacarpals AKA? | hand bones. |
Ten metatarsals AKA? | foot bones. |
Twenty phalanges AKA? | fingers or toes or digit(s). |
One finger or toe or digit is called a? | phalanx. |
Bones without a shaft are called? | Short bones. |
Examples of short bones include? 1. 16 carpals AKA? | wrist bones. |
The wrist bones are arranged in? | two rows of four each. |
All of the following are carpals except? | a. Pisiform b. Triquetrum (triquetral). c. Lunate. d. Scaphoid (navicular). |
All of the following are carpals except continued? | e. Hamate. f. Capitate. g. Trapezoid. h. Trapezium. |
2. Fourteen tarsals AKA? | ankle bones. |
The ankle bones are arranged in the? | hindfoot and the forefoot. |
Each hindfoot is made up of the? | 1. Calcaneus (calcaneum) AKA heel. 2. Talus. 3. Navicular. 4. Cuboid. |
The forefoot is made up of the? | 1. Medial or first cuneiform. 2. Intermediate or second cuneiform. 3. Lateral or third cuneiform. |
Thin bones found whenever there is a need for extensive muscle attachment or protection for soft or vital parts are called? | flat bones. |
Examples of flat bones include the? | 1. Cranium AKA skull. |
The bones of the cranium include? a. Two parietal bones AKA? | the cranial roof. |
b. One frontal bone AKA? | forehead. |
c. Two temporal bones AKA | temples. |
d. Located at the posterior base of the cranium is what bone? | occipital bone. |
The occipital bone is located at the? | posterior base of the cranium. |
e. Two zygomatic bones AKA | cheek bones. |
f. One maxilla AKA? | superior jaw. |
g. One mandible AKA? | inferior jaw. |
h. One nasal bone AKA? | the bridge of the nose. |
j. The depression where the eyes are found are called the? | orbits. |
2. One sternum AKA? | the breast bone. |
The superior section of the sternum is called the? | manubrium (handle). |
The medial section of the sternum is called the? | gladioulus (blade). |
The inferior section of the sternum is called the? | xiphoid process (tip). |
3. Twelve pairs of ribs? Ribs 1-7 are called the? | true ribs (vertebrosternal). |
Ribs 8-12 are called the? | false ribs (vertebrochondral) |
The last two was false ribs are called? | floating ribs (vertebral). |
4. Two scapulae AKA? | shoulder bones (blades). |
The lateral end of each scapula is called the? | acromion process. |
The muscles that move an arm are attached to the scapula at the? | coracoid process. |
The head of each humerus (superior arm) articulates with a? | glenoid fossa. |
5. The bones of the pelvis include the? | ilia, ischia and pubes. |
How would you make ischia, ilia, pubes singular? | ischium, ilium, pubis. |
6. Two patellae AKA? | kneecaps |
A typical vertebra consists of: 1. A thick disk-shaped anterior portion pierced with numerous small holes for nerves and blood vessels that nourish the bone called the? | vertebral body. |
2. The passage way for the spinal cord called the? | vertebral (neural) foramen. |
3. The posterior projection called the? | spinous process. |
4. Two lateral projections called? | transverse processes. |
5. The posterior wall of a vertebral arch called the? | lamina. |
6. The sections that connect the vertebral body to a vertebral arch and are notched to allow passageway for spinal nerves called? | pedicles. |
The surface of any typical bone will exhibit certain projections and depressions. The projections are called? | processes. |
The depressions are called? | fossae. |
1. Any sharp slender projection is referred to as a? | spine. |
2. A large prominence usually serving for the attachment of muscles or ligaments is called a? | tuberosity. |
3. A rounded or knuckle-like prominence is referred to as a? | condyle. |
4. A small round process is referred to as a? | tubercle. |
5. A process shaped like a pulley is referred to as a? | trochlea. |
6. A very large projection is referred to as a? | trochanter. |
7. A narrow ridge is referred to as a? | crest. |
8. A less prominent ridge is referred to as a? | line. |
9, A terminal enlargement is referred to as a? | head. |
10. The part of the bone that connects the head is referred to as a? | neck. |
1. A narrow junction between two bones is referred to as a? | suture. |
2. An opening through which blood vessels, nerves, and ligaments pass is referred to as a? | foramen. |
3. A long tube-like passage is referred to as a? | canal. |
4. A cavity within a bone is referred to as a? | sinus or antrum. |
5. A furrow or groove is referred to as a? | sulcus. |
How many bones does the human body have? | 206 |