The insertion is that side of muscle which attached to Motor

The insertion is that side of muscle, which attached to: Motor neuron terminals, Synergistic muscle, Antagonistic muscle. Moveable body part. Stationary (immovable) body part. Which of the following would be antagonistic to the Flexor digitorum superficiallis? Biceps brachii Brachialis Extensor digitorum communis Triceps brachii Flexor carpi ulnaris. Which of the following muscles is named for its action? Latissimus dorsi. Tibialis anterior. Gluteus maximus Biceps brachii Adductor femoris. Two antagonistic hormones are: Calcitonin and Parathyroid Hormone/Melatonin and Follicle-stimulating Hormone. Aldosterone and Cortisol. Epinephrine and Norepinephrine. Oxytocin and Prolactin. The adrenal cortex secrets only these hormones: Polypeptide hormones. Corticosteroid hormones. Amine-derivative hormones. Glycoprotein hormones. Inorganic hormones, such as nitric oxide. Releasing hormones are produced by: Anterior Pituitary Gland. Posterior Pituitary Gland. Hypothalamus. Ovaries and testes. It depends on what releasing hormone you are talking about.

Solution

47) in most of the cases one end of the muscle is fixed in position while other moves during contraction. muscle has two attachments -one is origin and another one is insertion. The origin is the attachments that does not move during contraction while the insertion is the attachment that does move when the muscle contracts. so answer is D

48) answer is E . flexor digitorum superficialis- action is flexes the wrist, forarm and the middle and proximal phalanges of fingers 2 to 5. synergist( like same action) muscles- abductor polllicis longus, flexor digitorum profundus, flexor pollicis longus. now antagonist ( opposite action) muscle flexor carpi radialis and ulnaris, palmaris longus. the action of flexor carpi is flexon and abduction of wrist.

43) answer is E adducotor femoris. function is adduction and flexon of hip joint

44) answer is A . calcitonin is secreted by thyroid gland and it is a calcium lowering hormone(reduces blood calcium). parathyroid hormone is secreted by parathyroid and its action is to increase the blood calcium by remove the calcium from bone.

45) answer is B . corticosteriod hormones are the hormones formed from cholesterol and are secreted by adrenal cortex, gonads, placenta. protein hormones secreted by pituitary gland parathyroid and pancreas.

46) answer is C hypothalamus secrets releasing hormones like growth hormone releasing hormone, thyrotropic releasing hormone.