Mammalian Anatomy HW#--Joints and Muscles

1. A 57-year-old female has recently been diagnosed with overproduction of bone marrow, which has been causing significant bone pain. Which of the following bones is likely to be involved?

Vertebra—form backbone

**Overproduction of bone marrow: red cells, white cells, platelets

Red bone marrow in adults found only in vertebrae, hips, breastbone, ribs, and skull and at the ends of the long bones of the arm and leg

2. Which bone is found within the pelvis?

Ilium—part of pelvis

3. Which of the following bones belong in the appendicular skeleton?

Metatarsal—bone of the foot

**Appendicular skeleton:

Pectoral girdles: clavicle and spatula

Upper extremity: humerus, radius, ulna, carpals, metacarpals, phalanges

Pelvic girdle: ilium, iliac crest, ischium, asetabulum, pubis

Lower extremity: femur, tibia, fibula, patella, tarsals, metatarsals, phalanges

4. Which of the following bones belong in the axial skeleton?

Sternum—breastbone

**Axial skeleton:

Cranial bones: parietal, temporal, frontal, occipital, ethmoid, sphenoid

Facial bones: maxilla, zygomatic, mandible, nasal, platine, inferior nasal concha, lacrimal, vomer

Auditory Ossicles: malleus, incus, stapes

Vertebral Column: cervical vertebrae, thoracic vertebrae, lumbar vertebrae, sacrum, coccyx

Thoracic Cage: sternum, ribs

5. The interconnecting bony struts of spongy bone are known as:

Trabeculae--each of a series or group of partitions formed by bands or columns of connective tissue, especially a plate of the calcareous tissue forming cancellous bone