Cramp is a sudden painful, involuntary contraction (a) a muscle. It generally (b) the legs and hands. It can occur due to various (c) such as metabolic abnormality, severe cold, lack (d) blood flow and mineral deficiency. All these create pain or other types of sensory (e) that are transmitted from the muscle to the spinal cord thus (f) reflex muscle contraction. Thus, a positive, feedback mechanism (g) so that a small amount of initial irritation (h) to more and more contraction until a full-blown muscle cramp ensues. (a) (i) in (ii) with (iii) for (iv) of
(b) (i) affected (ii) affect (iii) affects (iv) affecting
(c) (i) reasons (ii) reason (iii) reasoning (iv) reasoned
(d) (i) in (ii) for (iii) of (iv) by
(e) (i) impulse (ii) impulses (iii) impulsed (iv) impulsing
(f) (i) caused (ii) cause (iii) causes (iv) causing
(g) (i) occurs (ii) occurring (iii) occurred (iv) occur
(h) (i) lead (ii) leads (iii) leading (iv) led​