Primary succession occurs in essentially lifeless areas—regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier
Answer: a. epicondyles
Explanation:
Distally the humerus bone is flattened. It exhibit a prominent bony projection on the medial side it is called as the medial epicondyle of the bone. The lateral epicondyle is present on the lateral side of the distal part of the humerus bone.
The grasping and powerful muscles of the forearm are attached with the medial epicondyle. It is typically robust and larger as compared to the lateral epicondyle. The lateral epicondyle is attached with the weaker muscles attached posteriorly.
Lumbar region refers to the lower back or lower spine.
important muscles of the lumbar spines are:
1) multifidus - stabilizes and rotates the lumbar spine
2) longissimus
3) spinalis
lower back pain are caused by improper posture, compression fracture, muscle injuries, fractured vertebrae, spinal stenosis, osteoarthritis, herniated disc.
The pelvis is different in males vs. females, particularly the sub-pubic angle.
