42 reflex arc diagram
In the diagram, O is the centre of the circle. Angle OAC - 120 and angle BOC - 80 Calculate the size of the followmg angles, giving a geometrical reason for each of your answers. (a) Angle OCA (c) Angle ACB (b) (d) Angle AOC Angle ABC The Ime PQR is a tangent to a circle with centre O. QS is a diameter of the circle. arc. arc length. arc sech. arc sinh. arc tanh. arc-arccos (arc cosine) arccsc (arc cosecant) arcctn (arc cotangent) arcsec (arc secant) arcsin (arc sine) arctan (arc tangent) area. area of a circle. area of a parallelogram. area of a square or a rectangle. area of a trapezoid. area of a triangle. area of an ellipse. Argand diagram 20 The diagram shows a kidney tubule and some of its associated blood vessels. P R Which substance is entirely reabsorbed from the fluid at R to the blood at P? A glucose B salts C urea D water 21 Which of the following can be an effector in a reflex arc? A a gland B a light receptor C the brain D the spinal cord Reflex arc diagram