Skeletal System
Subdecks (2)
Cards (51)
- The epiphysis is the rounded end of a long bone.
- The diaphysis is the shaft or midsection of a long bone.
- The diaphysis is the shaft or midsection of a long bone.
- There are three types of joints: fibrous joints, cartilaginous joints, and synovial joints.
- Synovial fluid lubricates the joint cavity and reduces friction during movement.
- Hyaline cartilage covers the ends of most bones and forms the articular surfaces of some joints.
- Fibrocartilage connects bones at intervertebral discs.
- The two divisions of the skeletal are the axial skeleton and the appendicular skeleton
- Long Bones have a shaft called the diaphysis with epiphyses at either end
- Appendicular Skeleton consists of the upper limbs (arms) and lower limbs (legs)
- Short Bones are roughly cubical in shape
- Flat Bones are thin and flat, such as those that form the skull
- Irregular Bones do not fit into any other category
- Axial Skeleton is made up of the skull, vertebral column, rib cage, sternum, and hyoid bone
- Flat Bones consist of thin plates that protect organs or form parts of joints
- Irregular Bones do not fit into any other category and include the sphenoid bone of the cranium and the sacrum and coccyx of the pelvis
- Flat Bones consist of thin plates that protect organs, such as the skull or rib cage
- 8 cranial bones
- frontal 1
- parietal 2
- occipital 1
- temporal 2
- sphenoid 1
- ethmoid 1
- 14 facial bones
- maxilla 2
- zygomatic 2
- palatine 2
- inferior nasal concha 2
- mandible 1
- lacrimal 2
- nasal 2
- vomer 1
- Middle ear bones
- malleus 2
- incus 2
- stapes 2
- Hyoid
- hyoid bone 1
- Vertebral Column
- cervical vertebra 7
- thoracic vertebra 12
- lumbar vertebra 5
- sacrum 1
- coccyx 1
- Thoracic Cage
- rib 24
- sternum 1
- Pectoral Girdle
- Scapula 2
- Clavicle 2
- Upper Limbs
- humerus 2
- radius 2
- ulna 2
- carpal 16
- metacarpal 10
- phalanges 28
- Pelvic Girdle
- hip bone 2
- Lower Limbs
- femur 2
- tibia 2
- fibula 2
- patella 2
- tarsals 14
- metatarsals 10
- phalanges 28
- The skeleton system has 206 bones
- The sutures of the skull are the coronal, lambdoid, and squamous suture.
- The coccyx at the inferior end of the sacrum is composed of several fused vertebrae
- The ribs are attached posteriorly to the vertebral column
- The thoracic cage is composed of 12 pairs of ribs
- The humerus, radius and ulna articulate to form the elbow joint
- Condyle: a rounded process of a bone that articulates with another bone. Ex: Occipital Condyle
- Crest: A narrow, ridgelike projection Ex: Iliac crest of illium