Gross Anatomy PT Exam 1 Questions and Answers (Graded A+)

Apical Ectodermal Ridge - ANSWER-Limbs arise from this and that governs limb formation No, because Myotomes and dermatomes are stretched down the developing limb so the torso is no longer present with the current spinal level -Exon the thorax the C4 dermatome meets the T2 dermatome - ANSWER-Will myotomes and dermatomes be in a contiguous sequence of spinal level nerves? Depressor muscles - ANSWER-Within a developing limb, the ventral rami pathways divide and the ventral divisions innervate development of what muscles Elevator Muscles - ANSWER-The dorsal division innervates developmental what muscles Laterally - ANSWER-During later development the upper limbs rotate 90 degrees which way Medially - ANSWER-During later development the lower limbs rotate 90 degrees which way Opposite direction - ANSWER-During development before the limbs rotate joint flexion appears to bend in what direcction -Depressor muscles are now mostly limb flexors -Elevator muscles are now mostly limb extendors Limb flexors - ANSWER-During development before the limb rotates depressor muscles are mostly what kind of motion Limb extensors - ANSWER-During development before the limb rotates elevator muscles are mostly what kind of motion Arm - ANSWER-The segment of the upper limb between the shoulder and the elbow -Brachium Forearm - ANSWER-Segment of the upper limb between the elbow and the wrist -antebrachium Sternoclavicular joint - ANSWER-Articulation between the clavicle and the sternum -Only bony connection of the upper limb to the rest of the skeleton Acromioclavicular - ANSWER-the joint between the acromion process of the scapula and the clavicle Glenohumeral Joint - ANSWER-Where the scapula meets the humerus, glenoid fossa of the scapula to the head of the humerus