Anatomy and Physiology of the Muscles Flashcards
supports the body with strong bones, cartilage and ligaments
Skeletal System
muscle to bone, contraction and pulling of tendons
Body Movement
has minerals, adipose tissue
Mineral Storage
matrix that always contains, collagen, ground substances, and other organic molecules
Extracellular Matrix
bone forming cells, does the repairing and modeling of bones
Osteoblasts
osteoblasts that become surrounded by matrix
Osteocytes
bone destroying cells, bone absorption and also contribute to the bone repair modeling
Osteoclasts
where can you mostly find long bones in the human body?
upper and lower limbs
where can you mostly find short bones in the human body?
wrist and ankle
where can you mostly find flat bones in the human body?
skull, ribs, scapula and sternum
where can you mostly find irregular bones in the human body?
vertebrae and facial bones
bones that are porous, has less bone matrix and more space than compact bone
Spongy bones
bones that are less porous and has less space than spongy bones
Compact bones
shaft of the bone
Diaphysis
Proximal and Distal end of the bones
Epiphysis
covers the ends of the epiphyses where the bone articulates with other bones and it is also made up of hyaline cartilage
Articular Cartilage
canal inside the shaft
Medullary Cavity
covers the outer surface of bone except where an articular cartilage is present
Periosteum
lines and inner cavities of the bone
Endosteum
composed of cartilage, between each epiphysis and the diaphysis
Epiphyseal plate/ growth plate
soft tissue that fills the spaces of diaphysis and epiphysis
Bone marrow
marrow that has adipose tissue
yellow marrow
marrow that produces blood cells
red marrow
osteoblasts deposit new bone matrix on the surface of bones
Appositional Growth
the removal of existing or old bone by osteoclasts and the deposition of new bone by osteoblasts
Bone remodeling
calcium absorption
Vitamin D
increases collagen formation
Vitamin C
increases general tissue growth
growth hormone
required for normal growth of all tissues
Thyroid hormone
when there’s low calcium what happens to the osteoclastic
increases its activity
when there’s high calcium what happens to the osteoclastic
decreases its activity
type of muscle responsible for facial expressions
face muscles
raises the eyebrows
occipitofrontalis
closes the eyelids, wrinkles at the lateral corners of the eye
orbicularis oculi
raises the upper eyelids
levator palpebrae superiors
draws the eyebrows inferior and medially
corrugator supercili
kissing muscles or puckering of lips
orbicularis oris
compresses the cheeks to hold food between teeth
buccinator
muscles for smiling, acts on upper lips
zygomatic major and minor
smiling, acts on angle of the mouth
risorius
separates upper lip by pulling the upper lip upwards
levator anguli oris
raises upper lip, sneering
levator labii superioris
lowers corner of the mouth (frowning)
depressor anguli oris
separates lips by pulling down the lower lip
depressor labii inferiors
wrinkle of chin
Mentalis
located anterior and lateral of part of the neck
sternocleidomastoid
widest muscle in the body
trapezius
located in the neck but inserts to the first and second rib, to elevate them during inspiration
scalene muscles
involves forcefully closing the mouth and grinding food between the mouth
chewing
masseters, medial pterygoid and lateral pterygoid
protraction of the mandible
important in mastication and speech, also holds food in place
tongue
protrudes the tongue
Genioglossus
depresses the tongue
hyoglossus
retracts the tongue
styloglossus
elevates the tongue
palatoglossus
muscles that extend, laterally flex, and rotate the vertebral column are divided into superficial and deep groups
trunk muscles
what type of muscle are these:
-iliocostalis
-longissimus
-spinalis
back muscles
mainly involved in breathing and helps air flow in the lungs
thoracic muscles
muscle that flex and rotate the vertebral column
abdominal wall muscle
muscles for scapular movement
upper limb muscles
types of muscles for scapular movement
trapezius, rhomboid major, rhomboid minor, levator scapulae, pectoralis minor, serratus anterior
types of shoulder movement
flexion, extension, abduction, adduction, rotation, circumduction of the shoulder
“pecs”, upper chest muscle flexes the shoulder and adducts the arm
Pectoralis Major
“swimmers muscle” medial rotation of arm, adduction of arm and extension of shoulder
latissimus dorsi
triangular muscle of the shoulder that forms a round mass
deltoid
a group of muscles that stabilize the shoulder joint by keeping the head of humerus in glenoid of scapula
rotator cuff
where does the rotation cuff sits on?
the humerus
what are muscles in the arm
-biceps brachii
-brachialis
-coracobrachialis
-brachioradialis
muscles of the forearm
-biceps brachii
supinator and pronator movements
what are muscles in the hips
-iliacus and psoas major
-(iliopsoas) flexes the hip
common site for injections
gluteus maximus “buttocks”
abducts medial rotation of thigh
glateus medius
longest muscle in the body, flexes hip and knee, lateral rotation of thigh
sartorius
flexes hip, abducts and medial rotation of thigh
tensor fasciae latae
types of hamstring muscles:
-biceps femoris
-semimembranosus
-semitendinosus
type of muscle that flexes the knee and extends the hip
hamstring muscles
calf muscle, forms bulge of calves, plantar flexion of ankle
Gastrocnemius
tendons of achilles that inserts into the calcaneous
achilles tendon
muscle underneath the gastrocnemius, plantar flexion of ankle
soleus
dorsiflexion of the ankle
tibialis anterior
elevates the mandible
Medial Pterygoid
Depresses the mandible
Lateral Pterygoid
retraction of the mandible
Temporalis
what type of muscle changes the shape of the tongue?
Intrinsic muscles
what muscle connects vertebrae to ribs
superficial muscles
what muscle connects vertebrae to another vertebrae?
deep muscles
what muscle contracts to maintain erect posture? list the type of muscles as well.
Erector Spinae
-Iliocostalis
-Longissimus
-Spinalis
what muscles elevate the ribs, quiet inspiration
External Intercostals
what muscles depresses the ribs, forced expiration
Internal Intercostals
what muscle contracts during inspiration to increase the volume of the thoracic cavity?
Diaphragm
what muscle elevates and supports pelvic floor?
Coccygeus
what muscle elevates the anus?
Levator Ani