Unit 2 - Chapter 15 - Musculoskeletal System Flashcards
what does the musxuloskeletal system include
bones, muscles and joints
what is the function of bones
- framework on which the body is consructed
- protect and support internal organs
- assist the body in movement
what are inner bones composed of and what do they do
- composed of hematopoietic tissue (red bone marrow, which manufactures blood cells)
what do outer bones do
storage area for minerals necessary for growth such as calcium and phosphorus
what are joints
- the places at which bones come together
how is the type of joint found in a specific location determined
- determined by the need for greater or lesser flexibility of movement
where are muscles found
- attached to bones or to internal organs and blood vessels
what do muscles do
- responsible for movement
- involved in the contraction and relacation of muscles
what are tendons
connective tissue that bind muscle to bones
what do ligaments do
bind bones to other bones
what do orthopedists do
they are physicians who treat bone, joint and muscle conditions
what do rheumatologists specialize in
joint problems
what do physiatrists focus on
focus on rehibilitation after injury or illness to bones, muscles and nerves
what does a medical doctor (MD) and doctor of osteopathy (DO) have in common
they can both specialize in orthopedics, rheumatology and physiatry
expand on a chiropractors education
- not a physician but has extensice training in using physical means to manipulate the spinal column, joints and soft tissues
expand on a physical therapist
someone with a doctoral degree who develops a treatment plan based on a patients physical imparements, with or without a physicians diagnosis
what is the goal of physiotherapy
to restore function, improve function, improve mobility and relieve pain
expand on athletic trainers
- non physicians who work witha physician to provude therapeutic intervention and rehabilitation for injuries and medical conditions
what are bones composed of
composed of a specialized tissue called osseous tissue and a rich supply of blood vessels and nerves
what does osseous tissue consist of
osteocytes (bone cells), dense connective tissue strands (collagen) and intercellular calcium salts
during fetal development, what are the bones composed of
cartilage
what is ossification
the process of when the embryo develops, the cartilage that the bone is composed of is slowly replace with immature bone cells and calcium deposits
what are osteoblasts
the immature osteocytes that replace the cartilage during ossification
what are osteoclasts
large cells that function to reabsorb, or digest bony tissue (bone phagocytes)
what are the 3 things needed for the formation of bones
calcium, phosphorus, vitamin d
how many bones are there in the body
206
where are long bones found
in the thigh, lowe leg and upper/lower arm
where are short bones found
in the wrist and ankle
whare are flat bones found
found in spots covering soft body parts like the skull, shoulder blades, ribs and pelvis
what are sesamoid bones and where are they found
- small, rounded bones (resembling a sesame seed)
- found near joints (ex. knee cap)
what is the shaft, or middle region of a long bone called
diaphysis
what is each end of a long bone called
epiphysis
what is the area called of cartilage tissue that is constantly being replaced by new bone tissues as the bone grows
epiphyseal line or plate
what is the flared portion of the bone that lies between the epiphysis and the disphysis
metaphysis
what is the strong fibrous membrane that coveres the surface of long bones
periosteum
there is a tissue on the joints that attaches bone to bone at the end of long bones….what is that called
articular catilage
what is the layer of hard, dense bone that lies under the peiosteum in all bones and is located cheifly around the diaphysis of long bones
compact (cortical) bone
within the compact bone there as a system of small canals containing blood vessels that bring oxygen and nutrients to the bone and remove waste products such as carbon dioxide…..what are these samm canals called
haversian canals
what is compact bone tunneled one in the center shaft of long bones by and which contains yellow bone marrow
medullary cavity
what bome is more pourous and less dense than compact bone, found near the end of a long bone
cancellous bone, also sometimes called spongy or trabecular bone
what are the interwoven fibers called that are found in the epiphyses and metaphyses
trabeculae
what is hematopoiesis
the production of all types of blood cells in the bone marrow
what are bone processes
enlarged area that extend out from bones and serve as attachments for muscles, tendons and ligaments
what are bone depressions
openings or hollow regions serving as conenctions between bones, or passageways for blood vessels and nerves
what are sutures
joints at which cranial bones join each other
what are fontanelles
gaps in a newborn childs skull of unossified tissue, also called soft spots
expand on the frontal bone
forms the foreheas and the roof of the bony sockets that contain the eyes
expand on the parietal bone
the 2 bones (one on each side of the skill) that form the roof and upper part of the sides of the cranium
expand on the temporal bone
the two bones that form the lower sides and base of the cranium. each bone encloses an ear and contains a fossa for joining with the mandible (lower jawbone)
expand on the temporomadibular joint (tmj)
the area of connection between the temporal and mandibular bones
expand on the mastoid process
round process of the temporal bone behind the ear
exapnd on the styloid process
pole that projects downward from the temporal bone
expand on the occipital bone
forms the back and base of the skull and joins the parietal and temporal bones, forming a suture
expand on the foramen magnum
the opening of the inferior portion of the occiptal bone
expand on the sphenoid bone
bat shaped bone that extends behind the eyes and forms part of the base of the skull
expand on the sella turcica
a depression in the sphenoid bone in which the pituitary gland is located
expand on the ethmoid bone
thin, delicate bone that supports the nasal cavity and forms part of the sockets of the eyes. Composed of spongey cancellous bone. `
expand on the nasal bone
two slender bones that support the bridge of the nose. they join with the frontal bone and form part of the nasal septum
expand on the lacrimal bone
two, small, thin bones located at the corner of each eye. contain fossae for the lacrimal gland and canals for the passage of the lacrimal duct
expand on the mandibular bone
the lower jawbone (mandible). contain sockets called alveoli in which the teeth are embedded
expand on the maxillary bone
two large bones that compose the massive upper jawbones. joined by a suture in the median plane
expand on zygomatic bones
the two bones, one on each side of the face, that form the high portion of the cheek
expand on the vomer
the thin, single flat bone that forms the lower portion of the nasal septum
expand on sinuses
also known as air cavities. found in specific places within the cranial and facial bones to lighten the skull and warm and moisten air as it passes through,
expand on the scapula
shoulder blade
expand on the sternum
breastbone . the lower portion of the sternum is called the xiphoid process. the upper portion is called the manubrium.
expand on the ribs
there are 12 pairs of ribs. the first 7 are joined by costal cartilages. ribs 1 to 7 are called true ribs. ribs 8 to 10 are called false ribs. ribs 11 to 12 are called floating ribs
expand on the humerus
upper arm bone. labrum helps guide its movement.
expand on the ulna
medial lower arm bone. the bony process of the ulna at the elbow is called the olecranon
expand on the radius
lateral lower arm bone
expand on the carpals
the wrist bones
expand on the metacarpals
5 bones of the palm of the hand
expand on the phalanges
finger bones
expand on the pelvic girdle
pelvis
expand on the ilium
uppermost and largest portion of the pelvis
expand on the ischium
inferior or lower part of the pelvis
expand on the pubis
anterior part of the pelvis
expand on the pelvic cavity
region within the ring of bone formed by the pelvic girdle
expand on the femur
thigh bone
expand on the patella
kneecap
expand on the tibia
larger of the 2 bones of the lower leg
expand on the fibula
smaller of the 2 bones of the lower leg
expand on the tarsals
bones of the hind and mid parts of the foot
expand on the metatarsals
bones between the tarsals and ohalanges
expand on the phalanges of the foot
bones of the fore foot (toe bones)
calc/o or calci/o
calcium
kyph/o
humpback, hunchback
lamin/o
lamina