Skeletal System (NurseHub)

How many thoracic vertebrae are there in a vertebral column?

12

How many nasal bones are present in the face?

2

The skull is comprised of how many bones?

22 (8 Cranial and 14 Facial)

How many sacral vertebrae are present in the vertebral column?

5

The vertebral column is divided into how many sections?

5 -There are 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 5 sacral vertebrae (which fuse to form the sacrum), and the coccygeal vertebrae (known as the tailbone).

An irregular epiphysis at each end is present in which of the following?

A typical long bone -A typical long bone has an irregular epiphysis (the end of the bone) at each end, composed mainly of spongy (cancellous) bone, and a shaft or diaphysis, composed mainly of compact bone.

Limbs are part of which of the following?

Appendicular skeleton

The sternum is a part of which of the following?

Axial skeleton

Wrist bones are called which of the following?

Carpals

Sinus bone:

Cavity

The smallest vertebrae:

Cervical vertebrae

Which of the following is not classified as a shape of a bone?

Circular -Individual bones are classified by shape. There are long bones, short bones, flat bones, irregular bones, and sesamoid bones (bones found on joints). There are no circular bones.

Which of the following is known as the tailbone?

Coccygeal vertebrae

Which of the following is not true about the mandible bone?

Facial bones consist of two mandible bones -There is only one mandible bone, and it is not formed from two bones fusing together. The mandible bone is a facial bone and it the only moveable bone in the skull.

All of the following are small bones, except _______.

Femur

The appendicular skeleton includes the

Girdles and limbs

The largest vertebrae of the spinal column are known as ______________.

Lumbar vertebrae

Which of the following is not included in the bones of the cranium?

Nasal -The nasal bones are facial bones, so they are not located in the cranium.

The lower portion of appendicular skeleton consists of which of the following?

Os coxae

The pelvic girdle is made up of the two hip bones, also known as

Os coxae

The cells that form compact bone are called

Osteoblasts

When osteoblasts become fixed in a dense bone matrix, they continue to maintain bone tissue as which of the following?

Osteocytes -The cells that form compact bone are called osteoblasts; when they become fixed in the dense bone matrix, they stop dividing but continue to maintain bone tissue as osteocytes.

The kneecap is known as which of the following?

Patella

Detoxification is a function carried out by the skeletal system of the body. What does it involve?

Removal of poisons -Detoxification is one of the functions performed by the skeletal system of the body, which means removal of poisons, heavy metals, or other foreign substances from the blood.

Which vertebrae fuse to form the sacrum?

Sacral vertebrae

Individual bones are classified by ________.

Shape -Individual bones are classified by shape. There are long bones, short bones, flat bones, irregular bones, and sesamoid bones.

Ankle bones are called which of the following?

Tarsals

What of the following is not true about osteoblasts?

These are the cells from a cancellous bone -Cancellous bones can develop into compact bones when osteoblasts deposit new bone matrix in layers to enlarge the bone and fill in the spaces that once made the bone a spongy, cancellous bone.

The clavicle is a part of the ___________.

Upper portion of appendicular skeleton

The body framework consists of:

bone, cartilage, ligaments, and joints.

The skeletal system protects important organs in the body such as the:

brain, heart, and lungs

The bones of the skeletal system store important minerals such as:

calcium and phosphorus

Sulcus bone:

channel-like depression

The coccygeal vertebrae form the

coccyx, a small, triangular bone resembling a shortened tail located at the bottom of the spine.

Ramus bone:

curved surface

Bones of the lower extremity in the appendicular skeleton include:

femur (thighbone), the tibia and fibula, the tarsals (ankle bones), the metatarsals (bones of the foot), and the phalanges.

Foramen bone:

hole

Each of the os coxae consists of a fused

ilium, ischium, and pubis.

The mandible is the facial bone that is located ___________ to (below) the maxilla facial bone.

inferior

Thoracic vertebrae are

intermediate in size

Epiphysis

is the end of a long bone.

Femur is the thigh bone, which is the _______ _______ of the body.

largest bone

The smallest bones of the body are the bones of the ear (ossicles) which are:

malleus, incus and stapes.

The ossicles are the three bones of the inner ear, the:

malleus, incus, and stapes.

Ulna:

medial bone of the forearm

Compact and cancellous bones are the tissues that contain

osteocytes

The paired bones of the cranium include the:

parietal bones, temporal bones, and ossicles of the ear (malleus, incus, and stapes).

The paired bones of the cranium:

parietal, temporal, and ossicles of the ear (malleus, incus, and stapes).

The upper portion consists of the:

pectoral or shoulder girdle, the clavicle and scapula, and the upper extremity.

Lumbar vertebrae are the largest in size and are located between the

pelvis and rib cage

The single bones of the cranium:

single occipital, frontal, ethmoid, and sphenoid bones.

The axial skeleton consists of the:

skull, vertebral column, twelve pairs of ribs, and sternum.

The frontal bone, nasal bone, and zygomatic bone are all ________ (above) the maxilla bone.

superior

Sacral vertebrae are large triangular bone which provide

support to the spine.

Hemopoiesis:

the process of blood cell formation that takes place in the bone marrow, which is part of the skeletal system.

Detoxification:

the skeletal system is the process of bone tissues removing heavy metals (poisons) from the blood.

Humerus

upper arm bone