Hubs Glossary Flashcards
Lamellae
Series of cylinders of extracellular material surrounding central canal
Epiphysis
Expanded ends of long bones
Transverse Plane
divides body into top/bottom sections
Osteocyte
Cell that is responsible for communication and maintenance of bone matrix
Plantarflexion
Extension at ankle joint- pointing foot ( sagittal)
Ventral
Front
Superficial
Closer to surface
synovial fluid
Watery fluid that fills joint cavity and allows frictionless movement
Distal
Part of Limb further from Attachment
Sagittal Plane
Divides body into left/right sections
Intracapsular Ligaments
Ligaments inside of the joint capsule
Proximal
Part of limb closer to attachment
Joint capsule
Envelope surrounding synovial joint
Anterior
The front/ towards the front
Medial Rotation
Internal rotation (transverse)
Articulations
joint
Medial
Towards the Midline
epiphyseal plate
Growth plate- thin layer of cartilage between epiphysis and diaphisis to allow for longways growth of bone
Coronal Plane
Divides body into front/back sections
Capsular Ligaments
thickened regions of the joint capsule where extra support is required
cancellous bone
meshwork of spongy tissue ( trabeculae) found in core of bones
Cartilage
non vascular supporting connective tissue
Abduction
Movement away from midline ( coronal)
Lacuna
A cavity or depression in bone ( typically for osteocytes)
Circumduction
Movement of limb in a circle with no rotation
Fibrous Joints
DFCT in a ligament type structure that crosses from bone to bone and prevents movement. e.g. sagittal suture
Hyaline Cartilage
Cartilage found between bones at a joint where they articulate and prevents bone-bone contact+ provides smooth frictionless surface for movement
endochondral ossification
Process of transforming cartilage into bone
Homeostasis
regulatory mechanisms to ensure the maintenance of the internal environment at the ideal conditions despite external conditions
Leg
section of lower limb containing Tibia/ fibula
Adduction
Movement towards midline ( coronal)
Range of movement/motion (ROM)
The type and amount of movement that is allowed by the structure of the joint
Pronation
Movement of forearm so palms face posterier ( transverse)
Extension
Increases angle between flesh around joint (sagittal)
Dorsiflexion
Flexion and ankle joint- flexing foot ( sagittal)
Supination
Movement of forearm so palm faces anterior ( transverse)
Tendons
Cord of dense fibrous connective tissue (DFCT) that connects bone to muscle. Facilitates and controls movement of limbs
Ligaments
bands of dense fibrous connective tissue( DFCT) that connects bone to bone. Restricts movement of bones away from each other at a joint
Flexion
Decreases angle between flesh surrounding joint ( sagittal)
Coronal Movement
side to side movement
Eversion
sole of foot faces away from midline ( coronal)
Cartilaginous Joints
Fibrocartilage joints that allow some movement. e.g. intervertebral disc
Transverse movement
Rotational movement
Lateral rotation
external rotation ( transverse)
periostium
outer connective tissue of bone
Superior
Closer to top/above
Posterier
The back/ towards the back
Osteoblasts
Cells that produce bone matrix
Lateral
Further from/ away from the midline
Rotation
movement around the long axis of a joint
Fibrocartilage
Cartilage at articulations that experience compression and tension- distribute force over a wider area. e.g meniscus in knee
Canaliculi
Channels for osteocytes through extracellular material
Diaphisis
shaft of a long bone
Appositional Growth
Growth by forming new layers on the surface of pre-existing layers; process of increasing in thickness rather than length
Arm
Section of upper limb containing humerous
Forearm
Section of upper limb containing Radius/ulna
Joints
Where two bones meet and are held together
Inversion
sole of foot faces midline ( coronal)
Dorsal
Towards the Back
Deep
Further from surface
Sagittal Movement
Front and back movement
synovial membrane
Layer of tissue lining the inside of the joint cavity that secretes synovial fluid.
Bone Homeostasis
The balance of osteoblast and osteoclast activity
Osteons
Longitudinal units within compact bone
Thigh
Section of lower limb containing femur
compact bone
dense bone composed of osteons
Osteogenic Cells
stem cells that produce osteoblasts
Central canal ( osteon)
Hole in centre of osteon that contains blood vessels and nerves
Osteoclast
Cells responsible for removing bone matrix
Inferior
Closer to bottom/ below