FREE ANATOMY AND STUDY GAMES ABOUT AP I TEST 3

PDF Download FREE ANATOMY AND STUDY GAMES ABOUT A&P I TEST 3 Actual Qs and Ans Expert-Verified Explanation

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-Guarantee passing score -90 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Blood vessels, lymphatic vessels, and nerves from the periosteum penetrate the compact bone through____?

Answer:

transverse perforating canals or Volkmann's canals.The vessels and nerves of the perforating canals connect with those of the medullary cavity, periosteum, and central canals.

Question 2: Outer fibrous layer

Answer:

IS dense irregular connective tissue

Question 3: Periosteum

Answer:

is a tough connective tissue sheath and its associated blood supply that surrounds the bone surface wherever it is not covered by articular cartilage.

Question 4: Compact Bone Tissue

Answer:

-Central canal run longitudinally through the bone. Around the canals are concentric lamellae. Between the lamellae are small spaces called lacunae that contain osteocytes.

Question 5: Abduction

Answer:

movement away from the midline

Question 6: condyloid

Answer:

biaxial ( ex radiocarpal) flexion-extention (ex metacarpophalangeal (2nd to 5th) Abduction-adduction (ex wrist, joints Question 7: 2. Cartilaginous:

Answer:

held together by cartilage, no synovial cavity.Question 8: What is characteristic of spongy bone tissue, but not of compact bone tissue?

Answer:

Osteons (haversian systems) in compact bone and trabeculae in spongy bone.spongy bone=trabeculae, red bone marrow, medullary cavity. NO osteons.compact bone=osteon,central canal, concetric lamellae,lacunae,canaliculi,osteocytes,NO red bone marrow..

Question 9: Growth of the cartilage model.

Answer:

-Chondroblasts->chondrocytes: cell division, further secretion of matrix.

-Calcification of chondrocytes in the midregion of the model; mainly due to the burst of chondrocytes (hypertrophy) that release their contents and increase the pH of the matrix.

Question 10: metaphysic(metaphyses)

Answer:

In a mature bone- the regions where the diaphysis joins the epiphyses In a growing bone - include the epiphyseal plate which is a layer of hyaline cartilage that allows the Diaphysis of the bone to grow in length, but not in width;

Question 11: Periosteum

Answer:

The periosteum is attached to the underlying bone by perforating (Sharpey's) fibers, thick bundles of collagen that extend from the periosteum into the bone extracellular matrix.

Question 12: What are the types of fibrous joints? And the examples?

Answer:

• Suture-ex. frontal suture

• Syndesmosis- ex.Distal tibiofibular

• Interosseous membrane- ex.B/w tibia and fibula, b/w ulna and radius

Question 13: Compact Bone Tissue

Answer:

-The areas between osteons contain interstitial lamellae; outer circumferential lamellae just beneath the Periosteum; inner circumferential lamellae encircle the medullary cavity

Question 14: Arranged around the entire outer and inner circumference of

the shaft of a long bone are lamellae called___?

Answer:

circumferential lamellae. They develop during initial bone formation.

Question 15: Compact Bone Tissue

Answer:

forms the external layer of all bones; provides protection and support and helps bones resist stress -Arranged in units called Osteons (Haversian systems).

Question 16: Between the concentric

lamellae are small spaces called?

Answer:

lacunae that contain osteocytes.(la-KOO-ne=little lakes; singular is lacuna

Question 17: Do all symphyses occur in the midline of the body?

Answer:

Yes, All symphyses occur in the midline of the body: intervertebral joints, pubic symphysis.

Question 18: Compact bone tissue

Answer:

is composed of repeating structural units called osteons, or haversian systems

Question 19: The circumferential lamellae that line the medullary cavity are

called

Answer:

inner circumferential lamellae encircle the medullary cavity.Question 20: Based on the degree of movement: Synarthrosis

Answer:

an immovable joint Question 21: 4. Osteoclasts:

Answer:

derived from the fusion of many Monocytes, functions in resorption, the destruction of bone matrix.

Question 22: epiphysis(epiphyses)

Answer:

Tubular shaft that forms the axis of long bones Composed of compact bone that surrounds the medullary cavity Yellow bone marrow (fat) is contained in the medullary cavity Question 23: -Impacted fracture:

Answer:

One end of fractured bone is force-fully driven into the interior of the other