Question

the ________ is the outermost meninges and forms supportive and protective partitions between some portions of the brain. pla mater dura mater denticulate mater arachnoid mater question 15 the bones of the arms and legs are classified as what type? flat bones long bones irregular bones short bones

Explanation:

• For the first question: The meninges have three layers. The dura mater is the outermost layer. The pia mater is the innermost, the arachnoid is in the middle, and there's no "denticulate mater" (the denticulate ligament is a different structure).
• For the second question: Long bones have a long axis and are found in limbs (arms and legs). Flat bones (e.g., skull bones), irregular bones (e.g., vertebrae), and short bones (e.g., carpals in the wrist) have different shapes and locations.

Answer:

• First question: B. dura mater
• Second question: B. Long bones