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Musculoskeletal System
Bones, bony features, muscle attachments, muscle function.
76
Biology
Undergraduate 2
06/04/2011

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Term
Human Dental Pattern
Definition
2:1:2:3
Term
Cranium
Definition
Calvarium and Facial Bones
Term
Skull
Definition
Cranium and Mandible
Term
Coronal Suture
Definition
Joins two Parietal bones to Frontal bone. Runs Left to Right
Term
Supraorbital Notch
Definition
Above Supraorbital ridge in Frontal bone. For supraorbital nerve, artery, and vein.
Term
Temporal lines
Definition
On parietal bone. For Temporalis muscle.
Term
Sagittal suture.
Definition
Joins parietal bones at medial line.
Term
Squamosal suture
Definition
Joins Temporal bone with parietal bone.
Term
Features of the temporal bone.
Definition
External auditory meatus, styloid process, mastoid process, zygomatic process.
Term
Mastoid process function.
Definition
Attaches sternocleidomastoid
Term
Zygomatic process attachments.
Definition
Meets the zygomatic bone of the face. Zygomatic arch attaches masseter muscle.
Term
Lambdoid suture
Definition
Joins parietal bones to occipital bone
Term
Occipital condyles
Definition
Articulate with superior articular facets with C1 to allow nodding.
Term
Nuchal lines
Definition
On base of occipital bone. Superior attaches sternocleidomastoid and trapezius.
Term
Sphenoid bone.
Definition
Part of base and vault. Has greater wings, lesser wings, and pterygoid processes.
Term
Facial bones.
Definition
Maxilla, Zygomatics, vomer, nasals, inferior nasal conchae, ethmoid, lacrimal, palatine. Mandible.
Term
Calvarial bones.
Definition
Occipital, parietals, frontal, sphenoid, temporals.
Term
Mandibular condyle
Definition
Articulates with the mandibular fossa of the temporal bone to form the temporomandibular joint (TMJ)
Term
Coronoid process
Definition
On mandible. Attaches temporalis muscle.
Term
Sella turcica
Definition
In sphenoid bone. Holds the pituitary gland.
Term
Cribriform plate
Definition
Part of ethmoid bone. Punctured by olfactory foramina which allow olfactory nerves.
Term
Sternocleidomastoid
Definition
Origin: Manubrium and medial clavicle
Insertion: Mastoid process of temporal bone and superior nuchal line of occipital bone.
Flexion and lateral rotation
Term
Scalenes
Definition
Origin: Transverse process of cervical vertebrae
Insert: anterolateral first two ribs
Lateral flexion of neck
Term
Skull sexual dimorphism
Definition
Males: More robust, squarer chin, larger superciliary arch.
Females: sharper supraorbital margin.
Term
Hyoid bone
Definition
Doesnt articulate with any other bones. Suspended from styloid process. Muscle attachments for tongue.
Term
Atlas
Definition
C1. For nodding of the head. Superior articular process articulates with inferior epicondyles of occipital bone.
Term
Axis
Definition
C2. Dens which allows rotation of neck, in shaking the head.
Term
Transverse foramen
Definition
On cervical vertebrae-for vertebral artery and vein
Term
Zygapophyseal joints
Definition
Synovial joints between vertebrae
Term
Lumbar vertebrae are lacking...
Definition
Costal facets, and transverse foramen
Term
Intervertebral disc
Definition
Shock absorption and weight bearing. Inner-nucleus pulposus. Outer-annulus fibrosis
Term
Ligaments of the spinal column
Definition
Anterior and posterior longitudinal. Ligamentum flavum. Interspinous ligaments. Ligamentum nuchae.
Term
Ligamentum flavum
Definition
Between lamina of vertebrae. Elastic to help with resuming an upright posture after flexion.
Term
Interspinous ligaments
Definition
Between spinous processes
Term
Ligamentum nuchae
Definition
Attach back and neck muscles (Trapezius) to nuchal lines on occipital and spinous processes of cervical vertebrae
Term
Ribs 1-7 join to sternum via...
Definition
Sternocostal joints
Term
Ribs 8-10
Definition
Joined only by costovertebral joints
Term
Deep muscles of the back
Definition
Erector spinae: Iliocostalis, longissimus, spinalis.
Term
Clavicle: Conoid tubercle
Definition
Posterior inferolateral. Anchors to coracoid process of scapula via conoid ligament
Term
Clavicle: Trapezoid line
Definition
Posterior inferolateral. Anchors coracoid process of scapula via trapezoid ligament
Term
Foramen at the junction of the occipital and temporal bones
Definition
Jugular foramen. Allows jugular vein.
Term
Posterior cranial fossa bones
Definition
Occipital and temporal
Term
Middle cranial fossa bones
Definition
Sphenoid, temporal, parietal
Term
Anterior cranial fossa bones
Definition
Frontal, ethmoid (cribriform plate), sphenoid.
Term
Infraorbital foramen
Definition
In maxilla. Allows infraorbital nerve.
Term
Coracohumeral ligament
Definition
Strongest shoulder ligament. From coracoid process to the greater tubercle of the humerus.
Term
Trapezius muscle
Definition
Origin: Occipital bone, ligamentum nuchae, spinous processes of C7 and thoracic vertebrae.
Insertion: Acromion and spine of scapula and lateral third of clavicle
Stabilises, retracts/adducts, rotates scapula
Term
Levator scapulae
Definition
Origin: Transverse processes of C1-C4.
Insertion: medial border of scapula-superior to spine
Elevates/adducts scapula
Term
Rhomboid major and minor
Definition
Origin: Spinous processes of C7 and T1 (Major) and spinous processes of T2-T5 (minor)
Insertion: Medial border of scapula
Stabilise scapula. Retract/adduct.
Canoe paddling?
Term
Pectoralis major
Definition
Origin: Sternal clavicle, sternum, ribs 1-6 cartilage, aponeurosis of external obliques.
Insertion: Intertubercular sulcus and greater tubercle of humerus.
Prime arm flexor, medial rotator, adductor.
Term
Deltoid
Definition
Origin: Lateral third of clavicle, acromion and spine of scapula
Insertion: Deltoid tuberosity of humerus (lateral)
Abduction, flexion, medial rotation, extension, lateral rotation.
Term
Latissimus dorsi
Definition
Origin: Lumbodorsal fascia from spines of lower six T vertebrae, Lumbar, lower ribs, iliac crest, inferior angle of scapula.
Insertion: Spirals around teres minor to intertubercular sulcus of humerus
Prime arm extender, adductor, medial rotator
Term
Subscapularis
Definition
Origin: Subscapular fossa of scapula
Insertion: Lesser tubercle of humerus
Medial rotation.
Rotator cuff.
Term
Supraspinatus
Definition
Origin: supraspinous fossa of scapula
Insertion: Superior greater tubercle of humerus
Abduction initiator.
Rotator cuff.
Term
Infraspinatus
Definition
Origin: infraspinous fossa of scapula
Insertion: posterior greater tubercle of humerus
Lateral rotation of humerus.
Rotator cuff.
Term
Teres minor
Definition
Origin: Lateral border of dorsal scapula
Insertion: Inferior greater tubercle of humerus
Lateral rotation of humerus.
Rotator cuff.
Term
Teres major
Definition
Origin: posterior scapula at inferior angle
Insertion: lesser tubercle of humerus
Extends, medially rotates, adducts
Term
Biceps brachii
Definition
Origin:(SH) coracoid process, (LH) supraglenoid tubercle and lip of glenoid cavity
tendon runs through intertubercular sulcus.
Insertion: radial tuberosity
Supination, elbow flexion
Term
Iliacus
Definition
Origin: Iliac fossa and crest, ala of sacrum
Insertion: lesser trochanter of femur
Part of iliopsoas
Hip flexion, or flexing trunk on hip
Term
Psoas major
Definition
Origin: transverse processes, bodies, and discs of Lumbar vertebrae and T12.
Insertion: Lesser trochanter of femur
Part of Iliopsoas
Flexion of hip, flexing trunk on hip.
Term
Sartorius
Definition
Origin: anterior superior iliac spine
Insertion: medial proximal tibia
Flexes, abducts, laterally rotates thigh.
Term
Rectus femoris
Definition
Origin: Anterior inferior iliac spine and superior margin of acetabulum
Insertion: patella and tibial tuberosity via patellar tendon
Extends knee and flexes thigh at hip
Term
Gluteus maximus
Definition
Origin: dorsal ilium, sacrum, and coccyx
Insertion: gluteal tuberosity of femur, iliotibial tract
Major thigh extensor
Term
Gluteus medius
Definition
Origin: between anterior and posterior gluteal lines on lateral ilium
Insertion: lateral greater trochanter of femur
Abducts and medially rotates, stabilises hip
Term
Gluteus minimus
Definition
Origin: between anterior and inferior gluteal lines on external ilium
Insertion: anterior border of greater trochanter of femur
Abducts and medially rotates, stabilises hip
Term
Biceps femoris
Definition
Origin: (LH)Ischial tuberosity, (SH) linea aspera, lateral supracondylar line, distal femur.
Insertion: head of fibula and lateral condyle of tibia.
Extends thigh
Term
Semitendinosus
Definition
Origin: ischial tuberosity
Insertion: medial upper tibial shaft
Extends thigh, flexes knee
Term
Semimembranosus
Definition
Origin: Ischial tuberosity
Insertion: medial condyle of tibia, lateral condyle of femur
Extends thigh and flexes knee.
Term
Tibialis anterior
Definition
Origin: lateral condyle and upper 2/3 of tibial shaft, interosseus membrane.
Insertion: inferior surface of medial cuneiform and first metatarsal.
Prime dorsiflexor
Term
Extensor hallucis longus
Definition
Origin: anteromedial fibula shaft and interosseus membrane.
Insertion: distal phalanx of great toe
Extends great toe
Term
Peroneus longus
Definition
Origin: head and upper portion of lateral fibula
Insertion: via tendon that curves under foot to first metatarsal and medial cuneiform
Plantarflexes and everts
Term
Peroneus brevis
Definition
Origin: distal fibula shaft
Insertion: via tendon running behind medial malleolus to proximal fifth metatarsal
Plantarflexes and everts
Term
Gastrocnemius
Definition
Origin: by two heads from medial and lateral condyles of femur
Insertion: posterior calcaneus via calcaneal tendon
Plantarflexes
Term
Soleus
Definition
Origin: superior tibia, fiblula, interosseus membrane
Insertion: posterior calcaneus via calcaneal tendon
Plantarflexes
Term
Flexor digitorum longus
Definition
Origin: posterior tibia
Insertion: tendon runs behind medial malleolus to distal phalanges of toes 2-5
Plantarflexes and inverts foot. flexes toes
Term
Flexor hallucis longus
Definition
Origin: midshaft of fibula, interosseus membrane
Insertion: tendon runs under foot to distal phalanx of great toe
Plantarflexes and inverts, flexes great toe
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