Which of the following muscles that move(s) the pectoral girdle retract(s) and elevate(s) the scapula?
A. Pectoralis minor
B. Serratus anterior
C. Levator scapulae
D. Rhomboid major and minor
E. Trapezius
Answer: D
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In the human life cycle, the fertilized egg is called a(n) ________
A) Gonad B) Fetus C) Embryo D) Zygote
Which of the following is a protein hormone produced by the testes that inhibits secretion of follicle-stimulating hormone by the anterior pituitary gland?
a) chorionic gonadotropin b) testosterone c) estradiol d) inhibin e) relaxin
Which of the following statements is true of both bone and cartilage?
a. They both contain more intercellular matrix than cells. b. Both bone and cartilage cells are supplied with food and oxygen through canaliculi. c. Both bone and cartilage cells are located in lacunae. d. Both A and C are true.
Answer the following statements true (T) or false (F)
1. All bones formed by intramembranous ossification are irregular bones. 2. An osteon contains osteocytes, lamellae, and a central canal, and is found in compact bone only. 3. The trabeculae of spongy bone are oriented toward lines of stress. 4. Each consecutive bone lamella has collagen fibers that wrap in alternating directions. 5. Cartilage has a flexible matrix that can accommodate mitosis of chondrocytes.