QUESTION 1 . Chondroitin sulfate is an example of a (protein fiber / GAG / cell)

Question

QUESTION 1

   .   Chondroitin sulfate is an example of a (protein fiber / GAG / cell)
found in (epithelium / hyaline cartilage / cartilage cells / both hyaline cartilage and cartilage cells)
. Collagen fibers are found in (dense regular connective tissue / hyaline cartilage / fibrocartilage / all)
and gives tissues the ability to resist (stretch / compression / both / neither )

QUESTION 2

.Put the following events of endochondral bone formation in the correct sequence.

1.Mitosis of blast cells at epiphyseal disk

2.Formation of periosteal bud

3.Formation of epiphyseal line

4.Bone formation at primary center of ossification

5.Formation of periosteal bone collar

QUESTION 3

   .   The temperomandibular joint is a (symphysis / gliding / hinge / both gliding and hinge)
joint that is opened by the (masseter / sternocleidomastoid / digastricus / temporalis / both masseter and temporalis )
muscles.   

QUESTION 4

   .   Synovial joints are characterized by the presence of (cartilage / connective tissue / a space )
between articulating bones. The articular surfaces are covered with (elastic cartilage / hyaline cartilage / fibrocartilage / either hyaline or fibrocartilage)
and the (joint capsule / blood vessels / synovial membrane / chondrocytes / chondroblasts)
secrete(s) a viscous lubricating fluid. Synovial joints include all EXCEPT ONE of the following (hinge / saddle / syndesmosis / condyloid / pivot)   

QUESTION 5

   .   Match joint with joint category. Answers may be used more than once.

   1   Condyloid

   2   Ball and socket

   3   Hinge  

   4   Pivot  

   5   Synchondrosis

       A.Radio-ulnar. B.Elbow C.Hip. D.Radiocarpal (wrist) E.Between epiphysis and diaphysis (child) F.Symphysis      

QUESTION 6

   .   Which action is NOT possible at the wrist joint?  

   A   Flexion  

   B   Abduction  

   C   Circumduction

   D   Rotation

   E   Neither circumduction nor rotation is possible at the wrist

   F   None of the actions listed are possible are possible at the wrist

   G   All of the actions listed are possible at the wrist  

QUESTION 7

   .   The cervical postural curve is a __________ curve that is present _______________ .

   A   Primary; at birth

   B   Secondary; at birth

   C   Primary; after baby is able to hold head up  

   D   Secondary; after baby is able to hold head up

   E   Primary; after baby learns to walk

   F   Abnormal; when there are compression fractions due to osteoporosis

QUESTION3 Put the folowing vorte ef ondechandral bose formation in the comect sequence periectoalbone colar The temperomandibular join is a (syphysis/gliding/hinge/both gliding and hinge) sternocleidomastoid&digastricus; temporalis /both masseser and temporalis joist that is opened by the (masseter QUESTION 6 Match cescription with jint categery Anowers may be used more ran one Joeween vertebral bodies A. Syndeemoss E. Symchoncroi QUESTION 7 Synovial joints are characterized by the prosence of (carilape/connoctive tiss/a space) rticular surfaces ue covered with (clastie cartilage/hy aline carilage/ ecatilage ciher hyaline er librocutilagc) Coiat capeauleblood vessels synovial membrane/ chondrocylesI chondroblasts) Synovial joints include all EXCEPT ONE of the follewing hirge /saddle/syndesmosis/condyoidpivol between articulating bones The QUESTION 10 secretels) a viscous lubricating nukd The cavical ponbural curve la Secendary at bith rimary, aar baby is abie to hald haad up Secondary ar baby is abie to hold head up Prirery, aher beby leams to wak QUESTION 8 Match joint with joint catcgory. Answers may be used more than once. A Radio-ulnar Ball and sccket B Elbow :Hingo D. Radlocarpsl (wrist E. Between epiphysis and diaphysis (child) E Symphysis Pivct QUESTION 9 Which action is NOT possible at the wrist joint? Chondreitinsfade is an cample ofa (protcina liberIGAGeell) both hyaline cartilape and cartilape cells) brocar lageall) found is (epitbelium /hyaise ctilagecurtilage cells/ found in (serogular connective tibsue/hyaline cartilape Collagen Sbers a Rotation Neier cicunduction nor otation is possible at the wrist None of the actioas Eisted are possible are poisible the wrist All of the aios listed are possible at the wrist and gives tissues the abiny to resist (stretch/conmpression/both /nelher

Explanation / Answer

Q1:

GAG, Hyaline cartilage.

Hyaline cartilage has a rubbery, translucent matrix called chondrin which is made up of chondrin sulphate. Chondrin sulphate is a sulphated glycosoaminoglycan (GAG).

Hyaline cartilage, compression.

Matrix of Hyaline cartilage contains collagen fibers and chondrin sulphate. This cartilage is found in nasal septum, laryngeal wall and in the bone surface within joints. It resists against compression.

Q4.

cartilage, hyaline cartilage , synovial membrane, syndesmosis.

At synovial joints, a layer of somooth hyaline cartilage called articular cartilage covers the ends of bones. Between the two bones there is a space called synovial cavity lined by synovial membrane. This membrane contains secretoru cells which secretes a fluid called synovial fluid that lubricates the joint. Examples of synovial joints are ball and socket, hinge, condyloid, gkiding, pivot and saddle joint.

Q5.

1.Condyloid = Radiocarpel (wrist).

2.Ball and socket = Hip

3.Hinge =Elbow.

4. Pivot = radio ulnar joint.

5. Synchondrosis = Between epiphysis and diaphysis (child)

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