1.One complete heartbeat is made up of two phases: ____ and ____.
答案:AI参考:一个完整的心脏跳动由两个阶段组成：舒张期和收缩期。'
2.The small intestine is divided into three parts, ____, ____and ____.
答案:AI参考:The small intestine is divided into three parts: the duodenum, the jejunum, and the ileum.'
3.The fibrocarti'laginous callus is converted into a bony callus of ____ bone.
答案:"AI参考:The fibrocartilaginous callus is converted into a bony callus of 47 bone.
答案为47，因为题干中提到的是“fibrocartilageous callus”，这是一种软骨病，通常在骨折愈合过程中会转化为骨痂，而骨痂的数量通常是根据骨折的部位和程度来确定的，因此答案为47。"
4.Dendritic cells have many ____.
答案:AI参考:正确答案是【processes】。\n\nDendritic cells（树突状细胞）有许多（processes）和树突样突起。这个答案是正确的，因为它准确地描述了树突状细胞的特征。'
5.Helper T cells can bind to the dendritic cells and ____.
答案:AI参考:选项B正确：Helper T cells can bind to the dendritic cells and present antigens to the other T cells.\n\nHelper T细胞能够与树突细胞结合，并将抗原呈现给其他的T细胞。这句话的意思是：辅助T细胞能够与树突细胞结合，并将抗原展示给其他T细胞，促进T细胞的激活和增殖。这是免疫系统中一个重要的过程，帮助人体识别和防御外来病原体。'
6.The complement system can be activated by combination of antibody and ____.
答案:AI参考:正确答案是：antigen。\n\n补体系统可以被抗体和抗原结合激活。因此，空缺处应填入“antigen”（抗原）。'
7.The brainstem is divided into three sections in humans: ____ , ____, and ____.
答案:AI参考:答案为 答案为 the midbrain，pons，and medulla oblongata。\n脑干是人脑的一部分，由三个部分组成：中脑、小脑和延髓。所以答案是the midbrain，pons，and medulla oblongata。'
8.The tiny male cell that unites with the female ovum to form a fertilized egg or zygote is called the ____.
答案:AI参考:正确答案是：精子。\n\n根据问题中的描述，结合生物学知识，我们可以得出答案为“精子”。精子是男性生殖系统中的一种细胞，它通过与卵细胞结合形成受精卵或合子，是生殖过程中的重要组成部分。因此，答案为“精子”。'
9.Specialized cells that carry impulses are called ____.
答案:AI参考:正确选项应该是“神经细胞”。因为神经细胞是携带神经冲动的细胞，是神经系统中的基本结构和功能单位。'
10.The hypothalamus releases various kinds of hormones to control the ____ gland.
答案:AI参考:正确答案是【thyroid】\n\n填空题，根据题干中给出的提示“the hypothalamus releases various kinds of hormones to control the ____ gland”，可以判断空格处需要填入一个表示甲状腺的名词。因此，正确答案为“thyroid”。'
11.pulmonary （ ）。
A:of coronary arteries
B:of muscles
C:of lungs
D:of bones
A:study on form B:study on diseases C:study on cells D:study on viruses 13.uterine（ ）。
A:urine B:bone C:womb D:marrow 14.polygon（ ）
A:three B:two C:many D:few 15.Parasympathetic increase heart rate and respiration rate and sweating. ( )
A:对 B:错 16.Veins can be categorized into four main types: pulmonary, systemic, superficial, and deep veins. （ ）
A:错 B:对 17.Menstrual Cycle is a monthly series of hormone-controlled changes that prepare the uterine lining for pregnancy. ( )
A:对 B:错 18.There are four tiny parathyroid glands that are attached to the thyroid gland on each side. （ ）
A:对 B:错 19.The fallopian tube is the female reproductive organ that provides a place to support a developing human. ( )
A:错 B:对 20.The primary organs of the urinary system are the ureters. （ ）
A:错 B:对 21.External anal sphincter, is controlled by involuntary muscles. （ ）
A:对 B:错 22.Brain stem is in charge of involuntary actions such as breathing and heart beat. ( )
A:错 B:对 23.The adrenal gland are on top of the kidneys.（ ）
A:对 B:错 24.The relationship between potassium intake from diet and excretion determines external balance.（ ）
A:对 B:错 25.musculoskeletal（ ）
A:both muscle and bone B:muscle C:skeleton D:either muscle or bone 26.steroid（ ）
A:attract B:like C:hate D:avoid 27.septum （ ）。
A:wall dividing two ventricles B:small artery C:small vein D:wall dividing two atria 28.neostriatum（ ）。
A:same B:old C:new D:different 29.valvotomy（ ）
A:open B:cut C:close D:withdraw 30.estrogenic（ ）
A:female B:vitamin C:male D:fat 31.bacteriophage（ ）
A:eating B:dissolving C:breaking D:producing 32.periblastula（ ）
A:high B:around C:ahead D:low 33.pathophysiology（ ）
A:term B:heat C:temperature D:disease 34.osteocyte （ ）。
A:bone tissue B:a cell that breaks bone down C:a cell from which bone develops D:mature bone cell 35.osteopontin（ ）
A:bone B:marrow C:medulla D:cortex 36.genitalia （ ）。
A:inflammation B:decomposition C:examination D:reproduction 37.ovum（ ）
A:sperm B:womb C:uterus D:egg 38.lobotomy（ ）
A:close B:withdraw C:cut D:open 39.pulmonology（ ）。
A:pancreas B:skin C:Stomach D:lung 40.hydration（ ）。
A:pancreas B:stomach C:lung D:skin 41.leucocyte（ ）
A:tumor cell B:red blood cell C:lymphatic cell D:white blood cell 42.cerebrum（ ）
A:anterior portion of the brain B:posterior portion of the brain C:bottom portion of the brain D:middle portion of the brain 43.chromoendoscopy（ ）
A:change B:body C:color D:gland 44.pathogen（ ）。
A:organ B:producer C:type D:system 45.calciferol（ ）
A:Vitamin A B:Vitamin B C:Vitamin C D:Vitamin D2
