BIOL 114 Lilah Landry Exam 3 (Answered) 175 Questions
and Correct Answers With Complete Verified Solution, 100%
Correct. Updated Fall 2024/2025.
Joints (Articulations)
where two bones meet
Structure (Anatomy) of a Joint
determines function (movement)
Range of Motion (ROM)
the amount of movement at a joint
Synarthrosis
no movement, very strong
-ex: sutures in the skull, teeth
Ampiarthrosis
little movement, strong
-ex: vertebrae
Diarthrosis
free movement, somewhat strong
-ex: synovial
stronger
The less movement the joint has the ________ it is.
weaker
The more movement the joint has the _______ it is.
Bony Structure
synostosis
Synostosis
frontal bone, epiphyseal line
Fibrous Structure
-very little to no movement
-skull (sutures)
,-gomphosis
-syndesmosis
Gomphosis
teeth articulation with the maxilla and mandible
Syndesmosis
bones connected by ligaments
Cartilaginous Structure
-synchondrosis
-symphysis
Synchondrosis
how the first rib connects to the sternum
Symphysis
pubic bones
Synovial Joint Location
at the ends of long bones
True
T/F: Synovial joints have the greatest ROM.
Function of Synovial Joints
-lubrication
-nutrient distribution
-shock absorption
-protects articular cartilage (end of long bones)
Synovial Joint Accessory Structures
-bursa
-fat pads
-meniscus
-ligaments
Bursa
fluid filled pocket outside of joint capsule, often where tendons and ligaments rub together (pads
everything)
Fat Pads
, mass of adipose tissue, packing material
-fills empty space
Meniscus
pad of fibrocartilage that subdivided the synovial cavity
-channels synovial fluid
Ligaments
support, strength, reinforcement
-connect to bone to bone)
Cruciate
Crisscross
Collateral
off to the side
Types of Synovial Joints (anatomy & motion)
-plane
-hinge
-pivot
-condylar
-saddle
-ball and socket
Plane
-gliding
-monoaxial
-tarsals, carpals
Hinge
-angular
-monoaxial
-elbows & knees
Pivot
-rotation
-monoaxial
-axis, head of radius
Condylar
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