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chapt..6
skeletal system
| Question | Answer |
|---|---|
| what does the skeletal system consist of? | bones and accessorys the make up the joints |
| why does it provide framework? | for support |
| what does movement allow?L | movement by providing attachment sites for skeletal muscle |
| waht does the skull and ribcage protect? | internal organs |
| what is hemopoiesis? | blood formation |
| where is the hemopoiesis produced? | in red bone marrow |
| what is bone tissue? | connective tissue |
| what are osteocytes? | bone cells |
| what is matrix? | calcium salts and collegon |
| what are two types of bones? | compact and spongy |
| waht is another name for compact bone? | cortical bone |
| compact bones are made up of columns called what? | osteons or haversian systems |
| what do haversian canals contain? | blood vessels |
| waht are the spaces called that osteocytes are in? | lacunae |
| what is the spongy bone known as? | caucellous bone |
| is the spongy bone arranged in haversian systems? | no |
| what is long bone? | longer than they are wide |
| what is diaphysis? | middle long part |
| what is the second name for diaphysis? | shaft |
| what does the diaphysis contain? | yellow marrow |
| what is metaphysis? | between diaphysis and epiphysis |
| what growth plate does metaphysis contain? | epiphystal disk |
| what are short bones? | about the same length as width |
| what are flat bones? | flat surfaced |
| wht are irregular bones? | irregular shaped |
| short, flat and irregular bones are made of what bones?L | spongy |
| what is articular cartilage? | cartilage that covers the opposing surfaces of synovial joints |
| what is periosteum? | fibrous connective tissue membrane that covers bone |
| during embryonic growth the skeleton is a template fo what ? | cartilage of fiberous connective tissue |
| what is fontenal? | soft spots of fibrous connective tissue membranes still present at birth |
| what are the two divisions in the human skeletan? | axial skeleton and the apenicular skeleton |
| what part protects the heart lungs spleen and liver from mechanicl injury? | rib cage |
| what part protects the brain from mechanicl injury? | skull |
| what bones connect the legs to the axial? | hip bone |
| what bone connects the arm to the axial? | scapula and clavicle |
| what bone contains sockets for teeth? | mandible and maxilae |
| what bone forms point of cheek? | zygomatic bone |
| what bone forms the hard palate in mouth? | maxillae and palatine bone |
| what bone forms the nasal spectrum? | vomer and ethmoid bone |
| what bone contains the nasolacrimal duct? | lacrimal bone |
| what bone contains foramen magnum? | occipital bone |
| what bone protects the pituitary gland? | spenoid bone |
| what bone forms the bridge of the nose? | nasal bone |
| what four bones contain paranasal sinuses? | maxillae, frontal, aqhenoid and ethmoid |
| what two bones is squamosal suture between? | parietal and temporal |
| what two bones is lamvdoidal suture between? | parietal and occipital |
| what two bones is coronal suture between? | parietal and frontal |
| what is the sagittal suture between?the two parietal bones | the two parietal bones |
| in the middle ear cavity which are the three auditory bones? | malieus incus and stapes |
| what is the first cervical vertabrae called? | altis |
| what is the second cervical vertabrae called? | axis |
| what do the altis and axis form? | pivot joint |
| what does the pivot join do? | permitts side to side movement of the head |
| what do the two hip bones excellerate with? | sacrum of the vertabrae column |
| what is the supportive part of each vertebra called? | body |
| the bodies of adjacent vertabrae are separated by discs of what? | cartilage |
| what are the two functions of cartillage discs? | absorb shock and permit movement |
| what is the joint called between two vertabras? | symphysis |
| how many pairs of true ribs are there? | seven |
| how many pairs of false ribs are there? | three |
| how many pairs of floating ribs are there? | two |
| what two organs in thoracic cavity protected by mechanical injury by the ribs? | heart and lungs |
| what are two organs in the upper abdominal cavity protected from injury by the rib cage? | liver and spleen |
| how are the ribs pulled during inhalation? | up and out |
| what bones form the socket for humerus? | scapula |
| what are two bones of the forearm? | radius and ulna |
| what bone is part of the elbow joint? | ulna |
| how many carpals are found in each wrist? | eight |
| what joint is found between carpals? | gliding |
| what joint is in your thumb? | saddle |
| the saddle permits what type of motion of the thumb? | rotation or gripping |
| how many phalanges are in the thumb? | two |
| how many phalanges are in each other finger? | three |
| how amny phalanges are in one hand? | fourteen |
| what type of joint is found between phalanges? | hinge |
| how many metatarsals are in each foot? | five |
| how many tarsals are found in each ankle? | seven |
| what tarsal forms the heel? | calcaneous |
| how many phalanges are in each foot? | fourteen |
| how many phalanges are in the big toe? | two |
| how many phalanges are in each other toe? | three |
| what is articular cartilage? | provides a smooth surface on the joint surfaces of bones |
| what is joint capsule? | made of fibrous connective tissue encloses the joint like a sleeve |
| what is synovial membrane? | lines the joint capsule and secreteds synovial fluid |
| what is synovial fluid? | prevents friction within the joint cavity |
| what is bursae? | sacs of synovial fluid that permit tendons to slide easily acrosss a joint |
| where do two bones meet? | joint |
| what is an air cavity that opens into nasal cavity? | paranasalisinus |
| what is the end of a long bone? | ebiphysis |
| waht anchors tendons and ligaments? | periosteum |
| what is smooth cartilage on joint surfaces? | articular |
| waht fluid prevents friction as the bones move? | synovial |
| what is the production of bone matrix? | ossification |
| waht is compact bone made of? | haversignsystems |
| waht produces bone matrix? | osteoblasts |
| what is the immovable joint between cranial bones? | suture |
| what is the soft spot in an infants skull? | fontonel |
| what connects one bone to another bone? | ligament |
| wahqt reabsorbs bone matrix? | osteoblasts |
Created by:
jessfowler08
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