These five cost-effectiveness tests are the participant cost test (PCT), the. utility/program administrator cost test (PACT), the ratepayer impact measure test (RIM), the. total resource cost test (TRC), and the societal cost test (SCT).
The brain is composed of 3 main structural divisions: the cerebrum, the brainstem, and the cerebellum (see the images below). At the base of the brain is the brainstem, which extends from the upper cervical spinal cord to the diencephalon of the cerebrum.ross Anatomy: Meninges. The meninges consist of 3 tissue layers that cover the brain and spinal cord: the pia, arachnoid, and the dura mater (see the image below). The pia along with the arachnoid are referred to as the leptomeninges, whereas the dura is referred to as the pachymeninx.
The brain stem contains the midbrain, pons and medulla oblongata. The midbrain â the uppermost part â has fibers that connect the brain stem to the cerebrum and cerebellum; this area is very important in the control of skeletal movements. The pons, which lies between the midbrain and medulla oblongata, relays sensory information between the cerebrum and cerebellum.