Bio 253
BIO 253 TEST 3 STUDY GUIDE QUESTIONS
WITH CORRECT DETAILED ANSWERS 2025
Synarthrosis -Correct Answer ✔immovable joint
Amphiarthrosis -Correct Answer ✔slightly movable joint
Diarthrosis -Correct Answer ✔freely movable joint
Fibrous joint -Correct Answer ✔immoveable and held together by fibrous
connective tissue rich in collagen fibers
ex. teeth in socket, sutures
Sutures -Correct Answer ✔immovable joints of the skull
Syndesmosis -Correct Answer ✔a joint where a ligament is used to connect bone
to bone
Cartilaginous -Correct Answer ✔bones held together by hyaline cartilage or
fibrocartilage
Synchondrosis -Correct Answer ✔an almost immovable joint between bones
bound by a layer of cartilage, as in the vertebrae.
Bio 253
, Bio 253
Symphysis -Correct Answer ✔a disc of hyaline cartilage with a fibrocartilage
center between bones
Synovial -Correct Answer ✔have a synovial cavity that allows the joint to be freely
moveable
Articular capsule -Correct Answer ✔a continuation of the periosteum made of
dense irregular ct that unites the articulating bones and encloses the cavity
secretes synovial fluid that reduces friction between the bones
Sinuses -Correct Answer ✔air spaces in the bones of the skull that act as resonating
chambers for the voice, lighten the mass of the skull, and increase surface area for
nasal mucosa
Fontanels -Correct Answer ✔fibrous membranes connecting the cranial bones that
allow for rapid brain growth and flexibility during birth
Anterior Fontanel -Correct Answer ✔closes at 18-24 months
Posterior Fontanel -Correct Answer ✔closes around 2 months
Sphenoidal Fontanel -Correct Answer ✔closes around 3 months
Mastoidal Fontanel -Correct Answer ✔closes at 12 months
Bio 253
BIO 253 TEST 3 STUDY GUIDE QUESTIONS
WITH CORRECT DETAILED ANSWERS 2025
Synarthrosis -Correct Answer ✔immovable joint
Amphiarthrosis -Correct Answer ✔slightly movable joint
Diarthrosis -Correct Answer ✔freely movable joint
Fibrous joint -Correct Answer ✔immoveable and held together by fibrous
connective tissue rich in collagen fibers
ex. teeth in socket, sutures
Sutures -Correct Answer ✔immovable joints of the skull
Syndesmosis -Correct Answer ✔a joint where a ligament is used to connect bone
to bone
Cartilaginous -Correct Answer ✔bones held together by hyaline cartilage or
fibrocartilage
Synchondrosis -Correct Answer ✔an almost immovable joint between bones
bound by a layer of cartilage, as in the vertebrae.
Bio 253
, Bio 253
Symphysis -Correct Answer ✔a disc of hyaline cartilage with a fibrocartilage
center between bones
Synovial -Correct Answer ✔have a synovial cavity that allows the joint to be freely
moveable
Articular capsule -Correct Answer ✔a continuation of the periosteum made of
dense irregular ct that unites the articulating bones and encloses the cavity
secretes synovial fluid that reduces friction between the bones
Sinuses -Correct Answer ✔air spaces in the bones of the skull that act as resonating
chambers for the voice, lighten the mass of the skull, and increase surface area for
nasal mucosa
Fontanels -Correct Answer ✔fibrous membranes connecting the cranial bones that
allow for rapid brain growth and flexibility during birth
Anterior Fontanel -Correct Answer ✔closes at 18-24 months
Posterior Fontanel -Correct Answer ✔closes around 2 months
Sphenoidal Fontanel -Correct Answer ✔closes around 3 months
Mastoidal Fontanel -Correct Answer ✔closes at 12 months
Bio 253
