Encircle the letter of the correct answer.
1. It protects the lungs and the heart.
a. ribcage b. spinal column c. pelvic bones d. skeletons
2. There are vertebrae in the spinal column of a child.
a. 26 b. 33 c. 23 d. 16
3. are the bones at the side of the chest. a. Backbones b. pelvic bones c. ribs d. scapula
4. is the shoulder bone found at the back of your shoulder.
a. Backbones b. pelvic bones C. ribs d. scapula
5. There are pairs of ribs.
a. 10 b. 12 c. 16 d. 26
6. The connects the hand to the forearm. a. scapula b. ribs C. Wrist d. pelvic bones
7. A marrow that is found in the humerus, femur, pelvis and vertebrae.
a. red bone marrow c. yellowish bone marrow b. yellow bone marrow d. white bone marrow
8. The is the layer directly below epidermis.
a. dermis b. epidermis c. sweat glands d. hypo dermis
9. The — is composed of epithelial cells serve as the outer layer of the skin.
a. dermis b. epidermis c. hypo dermis d. hair shaft
10. The skins color is created by special cells called
a. epidermis b. hypo dermis c. hair shaft d. melanocytes
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Answer:
1. a. ribcage
- The rib cage helps protect the organs in the chest, such as the heart and lungs, from damage.
2. b. 33
- The human spinal column is made up of 33 bones: 7 vertebrae in the cervical region, 12 in the thoracic region, 5 in the lumbar region, 5 in the sacral region, and 4 in the coccygeal region.
3. C. ribs
- Human ribs are flat bones that form part of the rib cage to help protect internal organs.
4. d. scapula
- The scapula, or shoulder blade, is a large triangular-shaped bone that lies in the upper back. The bone is surrounded and supported by a complex system of muscles that work together to help you move your arm.
5. b. 12
- The rib cage surrounds the lungs and the heart, serving as an important means of bony protection for these vital organs. In total, the rib cage consists of the 12 thoracic vertebrae and the 24 ribs (12 pairs), in addition to the sternum.
6. C. Wrist
- The wrist joint is the complex joint formed between the distal ends (furthest from the body) of the Radius and Ulna (two forearm bones) and the carpal bones. It connects the forearm to the hand and allows a good range of motion.
7. a. red bone marrow
- Red marrow is found mainly in the flat bones such as hip bone, breast bone, skull, ribs, vertebrae and shoulder blades, and in the cancellous ("spongy") material at the proximal ends of the long bones femur and humerus.
8. a. dermis
- The Dermis. Lying underneath the epidermis—the most superficial layer of our skin—is the dermis (sometimes called the corium). The dermis is a tough layer of skin.
9. b. epidermis
- The epidermis is composed of keratinized, stratified squamous epithelium. It is made of four or five layers of epithelial cells, depending on its location in the body.
10. d. melanocytes
- The pigment melanin, which is responsible for skin and hair color in mammals, is produced in specialized cells called melanocytes and then distributed to other cells.
These answers are confirmed correct, gl bud