Day 6 Flashcards
What is the shared morphological characteristic of diarthrosis trochoid joints?
an oseous pivot point and an osteo-ligamentous ring
What are the examples of synovial pivot (diarthrosis trochoid) joint?
median atlanto-axial joint and proximal radio-ulnar joint
What are examples of diarthrosis condylar or diarthrosis bicondylar joints?
temporomandibular joint and femur-tibia joint of the knee
What are examples of diarthrosis ellipsodial joints?
radiocarpal joint of the wrist, metacarpo-phalangeal joints of the hand, metatarsal-phalangeal joints of the foot and the atlanto-occipital joint of the vertebral column
Which synovial joint classifications are now often interchanged in textbooks?
ellipsoidal and condylar synovial joints
What are examples of synovial saddle (diarthrosis sellar) joints?
carpometacarpal joint of the thumb, talocrural joint of the ankle and the calcaenocuboid joint of the foot
What are examples of diarthrosis enarthrosis joints?
femur-acetabulum of the innominate articulation at the hip and the humerus- glenoid cavity of the scapula articulation at the shoulder
What is the number of vertebrae in a typical adult?
26 segments
What is the number of vertebrae in a typical spine?
24 segments
What constitutes the spine
the 24 presasral segments; the cervical, thoracic and lumbar vertebrae
Which mammals have more than seven cervical vertebrae?
the ant bear and three toed sloth
which mammals have less than seven cervical vertebrae?
the manatee and two toed sloth
What is the length of a typical male spinal column?
about 70 centimeters or 28 inches
what is the length of a typical female spinal column?
about 60 centimeters or 25 inches
What is the length difference between a typical male and typical female spinal column?
about 3 inches
