Quadriceps Setting. This exercise helps to strengthen the quadriceps muscle (the big muscle on the front of the thigh), an important stabilizer of the knee. click to enlarge. Lie on your back with the leg you want to exercise straight. Place a small rolled towel underneath the knee.
Hallucinogens can cause an excited catatonic state, including 3,4-methylenedioxymethamphetamine (ecstasy) and phencyclidine (angel dust). Carbon monoxide poisoning can cause catatonia due to damage to the basal ganglia.
There are two forms causing achromatopsia: 1  Congenital â this form of cause of achromatopsia is defined as due to malfunction of the retinal phototransduction pathway.  Acquired â this form is due to damage to the thalamus of the mid brain or the cerebral cortex of the brain.